Incidence matrix according to Dynkin symbol

x3o3o o3x4o

. . . . . . | 48 |  3  4 |  3  12  2  2 |  1 12  6  6 1 |  4  6  6 3 | 2 2 3
------------+----+-------+--------------+---------------+------------+------
x . . . . . |  2 | 72  * |  2   4  0  0 |  1  8  2  2 0 |  4  4  4 1 | 2 2 2
. . . . x . |  2 |  * 96 |  0   3  1  1 |  0  3  3  3 1 |  1  3  3 3 | 1 1 3
------------+----+-------+--------------+---------------+------------+------
x3o . . . . |  3 |  3  0 | 48   *  *  * |  1  4  0  0 0 |  4  2  2 0 | 2 2 1
x . . . x . |  4 |  2  2 |  * 144  *  * |  0  2  1  1 0 |  1  2  2 1 | 1 1 2
. . . o3x . |  3 |  0  3 |  *   * 32  * |  0  0  3  0 1 |  0  3  0 3 | 1 0 3
. . . . x4o |  4 |  0  4 |  *   *  * 24 |  0  0  0  3 1 |  0  0  3 3 | 0 1 3
------------+----+-------+--------------+---------------+------------+------
x3o3o . . . ♦  4 |  6  0 |  4   0  0  0 | 12  *  *  * * |  4  0  0 0 | 2 2 0
x3o . . x . ♦  6 |  6  3 |  2   3  0  0 |  * 96  *  * * |  1  1  1 0 | 1 1 1
x . . o3x . ♦  6 |  3  6 |  0   3  2  0 |  *  * 48  * * |  0  2  0 1 | 1 0 2
x . . . x4o ♦  8 |  4  8 |  0   4  0  2 |  *  *  * 36 * |  0  0  2 1 | 0 1 2
. . . o3x4o ♦ 12 |  0 24 |  0   0  8  6 |  *  *  *  * 4 |  0  0  0 3 | 0 0 3
------------+----+-------+--------------+---------------+------------+------
x3o3o . x . ♦  8 | 12  4 |  8   6  0  0 |  2  4  0  0 0 | 24  *  * * | 1 1 0
x3o . o3x . ♦  9 |  9  9 |  3   9  3  0 |  0  3  3  0 0 |  * 32  * * | 1 0 1
x3o . . x4o ♦ 12 | 12 12 |  4  12  0  3 |  0  4  0  3 0 |  *  * 24 * | 0 1 1
x . . o3x4o ♦ 24 | 12 48 |  0  24 16 12 |  0  0  8  6 2 |  *  *  * 6 | 0 0 2
------------+----+-------+--------------+---------------+------------+------
x3o3o o3x . ♦ 12 | 18 12 | 12  18  4  0 |  3 12  6  0 0 |  3  4  0 0 | 8 * *
x3o3o . x4o ♦ 16 | 24 16 | 16  24  0  4 |  4 16  0  6 0 |  4  0  4 0 | * 6 *
x3o . o3x4o ♦ 36 | 36 72 | 12  72 24 18 |  0 24 24 18 3 |  0  8  6 3 | * * 4