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

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

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

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

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