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.

A200142 Number of near-matchings on the complete graph over 2n+1 vertices.

Table of values

n a(n)
1 3
2 30
3 315
4 3780
5 51975
6 810810
7 14189175
8 275675400
9 5892561675
10 137493105750
11 3478575575475
12 94870242967500
13 2774954606799375
14 86663966950811250
15 2878481759437659375
16 101322557932205610000
17 3767932623103896121875
18 147614301587482048068750

List of values

[3, 30, 315, 3780, 51975, 810810, 14189175, 275675400, 5892561675, 137493105750, 3478575575475, 94870242967500, 2774954606799375, 86663966950811250, 2878481759437659375, 101322557932205610000, 3767932623103896121875, 147614301587482048068750]

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

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