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

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

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

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

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