(0 18 16)(1 19 3)(2 8 6)(4 11 9)(5 14 13)(7 20 15)(10 17 12)
ALLOWS (11/8)-SEQUENCE
1: (7 8 15)
(0 18 16)(1 19 3)(2 8 20 15 6)(4 11 9)(5 14 13)(7)(10 17 12)
2: (2 8 20)
(0 18 16)(1 19 3)(2 15 6)(4 11 9)(5 14 13)(7)(8)(10 17 12)(20)
3: (1 19 3)
(0 18 16)(1)(2 15 6)(3)(4 11 9)(5 14 13)(7)(8)(10 17 12)(19)(20)
4: (2 15 6)
(0 18 16)(1)(2)(3)(4 11 9)(5 14 13)(6)(7)(8)(10 17 12)(15)(19)(20)