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

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

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

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

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