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

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

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

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

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