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

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

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

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

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