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

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

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

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

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