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

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

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

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

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