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

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

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

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

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