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

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

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

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

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