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

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

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

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

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