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

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

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

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

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