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