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

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

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

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

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