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

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

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

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

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