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

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

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

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

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