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