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

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

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

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

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