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

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

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

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

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