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