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

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

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

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

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