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