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

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

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

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

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