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