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