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

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

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

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

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