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.

A188234 Number of nondecreasing arrangements of n numbers in -(n+5)..(n+5) with sum zero and not more than two numbers equal.

Table of values

n a(n)
1 1
2 8
3 40
4 234
5 1317
6 7435
7 41748
8 234413
9 1316060
10 7395049
11 41601836
12 234385104
13 1322693568
14 7477225191
15 42343586740
16 240215460615
17 1365117760484
18 7771029244519
19 44310379612078
20 253062451888388
21 1447507286439975

List of values

[1, 8, 40, 234, 1317, 7435, 41748, 234413, 1316060, 7395049, 41601836, 234385104, 1322693568, 7477225191, 42343586740, 240215460615, 1365117760484, 7771029244519, 44310379612078, 253062451888388, 1447507286439975]

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

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