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

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

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

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

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