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

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

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

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

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