Acronym	til
Name	truncated heptapeton
Circumradius	(55-36 sqrt(2))/3 = 1.362771
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Incidence matrix according to Dynkin symbol

x3x3o3o3o3o

. . . . . . | 42 |  1   5 |  5  10 | 10  10 | 10  5 | 5 1
------------+----+--------+--------+--------+-------+----
x . . . . . |  2 | 21   * ♦  5   0 | 10   0 | 10  0 | 5 0
. x . . . . |  2 |  * 105 |  1   4 |  4   6 |  6  4 | 4 1
------------+----+--------+--------+--------+-------+----
x3x . . . . |  6 |  3   3 | 35   * ♦  4   0 |  6  0 | 4 0
. x3o . . . |  3 |  0   3 |  * 140 |  1   3 |  3  3 | 3 1
------------+----+--------+--------+--------+-------+----
x3x3o . . . ♦ 12 |  6  12 |  4   4 | 35   * |  3  0 | 3 0
. x3o3o . . ♦  4 |  0   6 |  0   4 |  * 105 |  1  2 | 2 1
------------+----+--------+--------+--------+-------+----
x3x3o3o . . ♦ 20 | 10  30 | 10  20 |  5   5 | 21  * | 2 0
. x3o3o3o . ♦  5 |  0  10 |  0  10 |  0   5 |  * 42 | 1 1
------------+----+--------+--------+--------+-------+----
x3x3o3o3o . ♦ 30 | 15  60 | 20  60 | 15  30 |  6  6 | 7 *
. x3o3o3o3o ♦  6 |  0  15 |  0  20 |  0  15 |  0  6 | * 7