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

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

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

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

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