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

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

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

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

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