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

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

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

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

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