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