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

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

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

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

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