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