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