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