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