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

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

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

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

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