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