Incidence matrix according to Dynkin symbol

o3o3o3o3o3o3o3x *d3o   (N,M → ∞)

. . . . . . . .    . | 240N ♦     M |    63M |    672M |    2520M |    4032M |   2016M    672M |    576M    63M |    72M  M
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
. . . . . . . x    . |    2 | 120NM ♦    126 |    2016 |    10080 |    20160 |   12096    4032 |    4032    756 |    576 56
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
. . . . . . o3x    . |    3 |     3 | 5040NM ♦      32 |      240 |      640 |     480     160 |     192     60 |     32 12
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
. . . . . o3o3x    . ♦    4 |     6 |      4 | 40320NM ♦       15 |       60 |      60      20 |      30     15 |      6  6
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
. . . . o3o3o3x    . ♦    5 |    10 |     10 |       5 | 120960NM ♦        8 |      12       4 |       8      6 |      2  4
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
. . . o3o3o3o3x    . ♦    6 |    15 |     20 |      15 |        6 | 161280NM |       3       1 |       3      3 |      1  3
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
. . o3o3o3o3o3x    . ♦    7 |    21 |     35 |      35 |       21 |        7 | 69120NM       * |       2      1 |      1  2
. . . o3o3o3o3x *d3o ♦    7 |    21 |     35 |      35 |       21 |        7 |       * 23040NM |       0      3 |      0  3
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
. o3o3o3o3o3o3x    . ♦    8 |    28 |     56 |      70 |       56 |       28 |       8       0 | 17280NM      * |      1  1
. . o3o3o3o3o3x *d3o ♦   14 |    84 |    280 |     560 |      672 |      448 |      64      64 |       * 1080NM |      0  2
---------------------+------+-------+--------+---------+----------+----------+-----------------+----------------+----------
o3o3o3o3o3o3o3x    . ♦    9 |    36 |     84 |     126 |      126 |       84 |      36       0 |       9      0 | 1920NM  *
. o3o3o3o3o3o3x *d3o ♦  240 |  6720 |  60480 |  241920 |   483840 |   483840 |  138240   69120 |   17280   2160 |      * NM