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.

Showing 1-1 of 1 results.

A132219 Number of line graphs on n labeled nodes.

Original entry on oeis.org

1, 2, 8, 66, 774, 11885, 230858, 5512821, 157926273, 5323010347, 207833183972, 9280406921629, 468879370270319, 26561064972285450, 1673867356632729422, 116555375609273658636, 8914259769349445083676, 744876885721366948399627
Offset: 1

Views

Author

Vladeta Jovovic, Aug 14 2007

Keywords

Crossrefs

Cf. A132220 (unlabeled case).

Formula

E.g.f.: exp(x/2-x^3/6)*Sum(A020556(n)*(log(1+x)/2)^n/n!, n=0..infinity).
Showing 1-1 of 1 results.