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

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

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

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

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