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

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

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

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

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