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

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

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

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

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