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