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Incidence matrix according to Dynkin symbol

x3o4x3o4x3o4*aØ*d *bØ*e *cØ*f   (N → ∞)

. . . . . .                     | 2N |  24 | 12  24 12 | 12 6  8
--------------------------------+----+-----+-----------+--------
x . . . . .                   & |  2 | 24N |  1   2  1 |  2 1  1
--------------------------------+----+-----+-----------+--------
x3o . . . .                   & |  3 |   3 | 8N   *  * |  1 1  0
x . x . . .                   & |  4 |   4 |  * 12N  * |  1 0  1
x . . . . o4*a                & |  4 |   4 |  *   * 6N |  1 1  0
--------------------------------+----+-----+-----------+--------
x3o4x . . .                   & ♦ 24 |  48 |  8  12  6 |  N *  *
x3o . . . o4*a                & ♦ 12 |  24 |  8   0  6 |  * N  *
x . x . x .                     ♦  8 |  12 |  0   6  0 |  * * 2N