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

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

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

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

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