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

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

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

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

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