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