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

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

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

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

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