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.

A029849 Number of nonisomorphic and nonantiisomorphic relations.

Original entry on oeis.org

1, 2, 9, 74, 1740, 149572, 48575680, 56147642904, 229149201466592, 3333310913116926416, 174695272793893644765312, 33301710992572083379669646560, 23278728241293538748514513208527104
Offset: 0

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Author

Christian G. Bower, Jan 15 1998 and Jun 15 1998

Keywords

Crossrefs

Cf. A000595, A002500.

Formula

a(n) = (A000595(n) + A002500(n)) / 2. - Sean A. Irvine, Mar 05 2020

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

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