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

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

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

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

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