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