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

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

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

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

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