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

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

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

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

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