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