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

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

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

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

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