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

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

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

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

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