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