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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.

A061541 Number of connected labeled graphs with n nodes and n+2 edges.

Table of values

n a(n)
1 0
2 0
3 0
4 1
5 120
6 6165
7 258125
8 10230360
9 405918324
10 16530124800
11 699126562530
12 30884683104000
13 1428626760992860
14 69248819808744576
15 3516693960681822375
16 186964957159176734720
17 10395215954531344335000
18 603712553730550509035520
19 36575888366817680447745924

List of values

[0, 0, 0, 1, 120, 6165, 258125, 10230360, 405918324, 16530124800, 699126562530, 30884683104000, 1428626760992860, 69248819808744576, 3516693960681822375, 186964957159176734720, 10395215954531344335000, 603712553730550509035520, 36575888366817680447745924]

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

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