Number of circular permutations with exactly one (unspecified) increasing or decreasing modular 3-sequence, with clockwise and counterclockwise traversals not counted as distinct.
A235939
Number of circular permutations with exactly one (unspecified) increasing or decreasing modular 3-sequence, with clockwise and counterclockwise traversals not counted as distinct.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =0a(4) =5a(5) =12a(6) =77a(7) =496a(8) =3672a(9) =30560a(10) =284031a(11) =2913624a(12) =32724939a(13) =399561428a(14) =5270747880a(15) =74717040128
External references
- oeis: A235939