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

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

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

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

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