Incidence matrix according to Dynkin symbol

o3o3x3o3o3o3o3o3o

. . . . . . . . . | 120 ♦   21 |  21   63 |   7   63  105 |  21  105  105 |  35 105   63 |  35  63  21 | 21 21  3 |  7  3
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
. . x . . . . . . |   2 | 1260 |   2    6 |   1   12   15 |   6   30   20 |  15  40   15 |  20  30   6 | 15 12  1 |  6  2
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
. o3x . . . . . . |   3 |    3 | 840    * |   1    6    0 |   6   15    0 |  15  20    0 |  20  15   0 | 15  6  0 |  6  1
. . x3o . . . . . |   3 |    3 |   * 2520 |   0    2    5 |   1   10   10 |   5  20   10 |  10  20   5 | 10 10  1 |  5  2
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
o3o3x . . . . . . ♦   4 |    6 |   4    0 | 210    *    * ♦   6    0    0 |  15   0    0 |  20   0   0 | 15  0  0 |  6  0
. o3x3o . . . . . ♦   6 |   12 |   4    4 |   * 1260    * |   1    5    0 |   5  10    0 |  10  10   0 | 10  5  0 |  5  1
. . x3o3o . . . . ♦   4 |    6 |   0    4 |   *    * 3150 |   0    2    4 |   1   8    6 |   4  12   4 |  6  8  1 |  4  2
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
o3o3x3o . . . . . ♦  10 |   30 |  20   10 |   5    5    0 | 252    *    * ♦   5   0    0 |  10   0   0 | 10  0  0 |  5  0
. o3x3o3o . . . . ♦  10 |   30 |  10   20 |   0    5    5 |   * 1260    * |   1   4    0 |   4   6   0 |  6  4  0 |  4  1
. . x3o3o3o . . . ♦   5 |   10 |   0   10 |   0    0    5 |   *    * 2520 |   0   2    3 |   1   6   3 |  3  6  1 |  3  2
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
o3o3x3o3o . . . . ♦  20 |   90 |  60   60 |  15   30   15 |   6    6    0 | 210   *    * ♦   4   0   0 |  6  0  0 |  4  0
. o3x3o3o3o . . . ♦  15 |   60 |  20   60 |   0   15   30 |   0    6    6 |   * 840    * |   1   3   0 |  3  3  0 |  3  1
. . x3o3o3o3o . . ♦   6 |   15 |   0   20 |   0    0   15 |   0    0    6 |   *   * 1260 |   0   2   2 |  1  4  1 |  2  2
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
o3o3x3o3o3o . . . ♦  35 |  210 | 140  210 |  35  105  105 |  21   42   21 |   7   7    0 | 120   *   * |  3  0  0 |  3  0
. o3x3o3o3o3o . . ♦  21 |  105 |  35  140 |   0   35  105 |   0   21   42 |   0   7    7 |   * 360   * |  1  2  0 |  2  1
. . x3o3o3o3o3o . ♦   7 |   21 |   0   35 |   0    0   35 |   0    0   21 |   0   0    7 |   *   * 360 |  0  2  1 |  1  2
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
o3o3x3o3o3o3o . . ♦  56 |  420 | 280  560 |  70  280  420 |  56  168  168 |  28  56   28 |   8   8   0 | 45  *  * |  2  0
. o3x3o3o3o3o3o . ♦  28 |  168 |  56  280 |   0   70  280 |   0   56  168 |   0  28   56 |   0   8   8 |  * 90  * |  1  1
. . x3o3o3o3o3o3o ♦   8 |   28 |   0   56 |   0    0   70 |   0    0   56 |   0   0   28 |   0   0   8 |  *  * 45 |  0  2
------------------+-----+------+----------+---------------+---------------+--------------+-------------+----------+------
o3o3x3o3o3o3o3o . ♦  84 |  756 | 504 1260 | 126  630 1260 | 126  505  756 |  84 252  252 |  36  72  36 |  9  9  0 | 10  *
. o3x3o3o3o3o3o3o ♦  36 |  252 |  84  504 |   0  126  630 |   0  126  504 |   0  84  252 |   0  36  72 |  0  9  9 |  * 10