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