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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.

A321239 a(n) = [x^(n^3)] Product_{k=1..n} Sum_{m>=0} x^(k^2*m).

Table of values

n a(n)
0 1
1 1
2 3
3 16
4 141
5 1534
6 19111
7 262103
8 3853373
9 59763670
10 966945204
11 16191250596
12 278933800080
13 4921604827876
14 88627915588351
15 1624349874930925
16 30231112607904743
17 570284342486800214
18 10887435073866747752
19 210086404047975194316
20 4092940691144348506396
21 80432925119259253535963

List of values

[1, 1, 3, 16, 141, 1534, 19111, 262103, 3853373, 59763670, 966945204, 16191250596, 278933800080, 4921604827876, 88627915588351, 1624349874930925, 30231112607904743, 570284342486800214, 10887435073866747752, 210086404047975194316, 4092940691144348506396, 80432925119259253535963]

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

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