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