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

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

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

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

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