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.

A345249 Number of labeled simple graphs on n vertices without cycles of length 4.

Original entry on oeis.org

1, 2, 8, 54, 548, 7984, 163440, 4599908, 174204728, 8721120744, 568964631296, 47787888342520, 5112015062311008, 689824902243337856, 116423739687724785152, 24387469030487505651984, 6296486009090647137387200, 1991072810881504185092485408
Offset: 1

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Author

Brendan McKay, Jun 12 2021

Keywords

Links

Crossrefs

EXP transform of A345248. Row sums of A352472.
A006786 counts isomorphism classes.
Cf. A213434, A352258 (loops allowed).

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

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