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