(0 18 2)(1 17 16 5 3)(4 20 9 8 6)(7 12 10)(11 15 13)(14 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 1 2)
(0)(1 18 2 17 16 5 3)(4 20 9 8 6)(7 12 10)(11 15 13)(14 21 19)
2: (2 5 18)
(0)(1 18 3)(2)(4 20 9 8 6)(5 17 16)(7 12 10)(11 15 13)(14 21 19)
3: (4 20 9)
(0)(1 18 3)(2)(4 8 6)(5 17 16)(7 12 10)(9)(11 15 13)(14 21 19)(20)
4: (14 21 19)
(0)(1 18 3)(2)(4 8 6)(5 17 16)(7 12 10)(9)(11 15 13)(14)(19)(20)(21)