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