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