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