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