(0 18 2)(1 5 3)(4 8 6)(7 17 14 12 9)(10 20 15 13 11)(16 21 19)
ALLOWS (11/8)-SEQUENCE
1: (0 10 20)

(0 15 13 11 10 18 2)(1 5 3)(4 8 6)(7 17 14 12 9)(16 21 19)(20)
2: (2 13 18)

(0 15 13)(1 5 3)(2)(4 8 6)(7 17 14 12 9)(10 18 11)(16 21 19)(20)
3: (16 21 19)

(0 15 13)(1 5 3)(2)(4 8 6)(7 17 14 12 9)(10 18 11)(16)(19)(20)(21)
4: (12 17 14)

(0 15 13)(1 5 3)(2)(4 8 6)(7 17 9)(10 18 11)(12)(14)(16)(19)(20)(21)