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