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