(0 20 15 12 6 5 3)(1 4 2)(7 19 17)(8 13 10)(9 18 16)(11 21 14)
ALLOWS (11/8)-SEQUENCE
1: (0 7 19)

(0 17 7 20 15 12 6 5 3)(1 4 2)(8 13 10)(9 18 16)(11 21 14)(19)
2: (6 7 12)

(0 17 7 5 3)(1 4 2)(6)(8 13 10)(9 18 16)(11 21 14)(12 20 15)(19)
3: (11 21 14)

(0 17 7 5 3)(1 4 2)(6)(8 13 10)(9 18 16)(11)(12 20 15)(14)(19)(21)
4: (12 20 15)

(0 17 7 5 3)(1 4 2)(6)(8 13 10)(9 18 16)(11)(12)(14)(15)(19)(20)(21)