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