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