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.

A255907 Number of collections of nonempty multisets with a total of 2n objects of exactly n colors.

Table of values

n a(n)
0 1
1 2
2 23
3 492
4 15800
5 693667
6 39371078
7 2780643510
8 237625842970
9 24048952078889
10 2833749745048664
11 383425910861623475
12 58894162142705623291
13 10170230140575830362828
14 1958227054977871232165423
15 417406876191416533261184253
16 97882032782014459518083172751

List of values

[1, 2, 23, 492, 15800, 693667, 39371078, 2780643510, 237625842970, 24048952078889, 2833749745048664, 383425910861623475, 58894162142705623291, 10170230140575830362828, 1958227054977871232165423, 417406876191416533261184253, 97882032782014459518083172751]

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

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