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