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

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

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

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

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