cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A081160 Number of even cycles in range [A014137(n-1)..A014138(n-1)] of permutation A057505/A057506, with two fixed-points of A057164.

Original entry on oeis.org

0, 0, 1, 1, 3, 4, 10, 16, 35, 60, 126, 225, 462, 848, 1716, 3188, 6435, 12095, 24310
Offset: 0

Views

Author

Wouter Meeussen and Antti Karttunen, Mar 10 2003

Keywords

Crossrefs

Bisections: A001700 (shifted right and prepended with zero) and A081161.
Cf. A081150, A081157, A081162.
Cf. A014137, A014138, A057505, A057506, A057164.

A081152 Number of even cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506.

Original entry on oeis.org

0, 1, 6, 37, 212, 1226, 6822, 38081, 215414
Offset: 0

Views

Author

Wouter Meeussen and Antti Karttunen, Mar 10 2003

Keywords

Crossrefs

Cf. A081151.
Cf. A081150, A081159, A081161, A081163.
Cf. A014137, A014138, A057505, A057506.

Formula

a(n) = A081150(2n+1) = A081159(n)+A081161(n)+A081163(n).
Showing 1-2 of 2 results.

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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