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

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

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

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

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