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

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

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

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

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