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

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

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

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

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