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

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

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

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

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