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

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

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

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

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