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

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

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

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

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