Incidence matrix according to Dynkin symbol

x o3o3o5x

. . . . . | 1200 |   1    4 |    4    6 |   6   4 |   4 1
----------+------+----------+-----------+---------+------
x . . . . |    2 | 600    * ♦    4    0 |   6   0 |   4 0
. . . . x |    2 |   * 2400 |    1    3 |   3   3 |   3 1
----------+------+----------+-----------+---------+------
x . . . x |    4 |   2    2 | 1200    * |   3   0 |   3 0
. . . o5x |    5 |   0    5 |    * 1440 |   1   2 |   2 1
----------+------+----------+-----------+---------+------
x . . o5x ♦   10 |   5   10 |    5    2 | 720   * |   2 0
. . o3o5x ♦   20 |   0   30 |    0   12 |   * 240 |   1 1
----------+------+----------+-----------+---------+------
x . o3o5x ♦   40 |  20   60 |   30   24 |  12   2 | 120 *
. o3o3o5x ♦  600 |   0 1200 |    0  720 |   0 120 |   * 2