(0 12 10 8 4)(1 21 3)(2 9 7)(5 17 6)(11 15 13)(14 18 16)(19 22 20)
ALLOWS (11/8)-SEQUENCE
1: (0 2 9)

(0 7 2 12 10 8 4)(1 21 3)(5 17 6)(9)(11 15 13)(14 18 16)(19 22 20)
2: (1 21 3)

(0 7 2 12 10 8 4)(1)(3)(5 17 6)(9)(11 15 13)(14 18 16)(19 22 20)(21)
3: (2 12 7)

(0 7 10 8 4)(1)(2)(3)(5 17 6)(9)(11 15 13)(12)(14 18 16)(19 22 20)(21)
4: (4 10 8)

(0 7 10)(1)(2)(3)(4)(5 17 6)(8)(9)(11 15 13)(12)(14 18 16)(19 22 20)(21)