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.

A271662 Convolution of nonzero pentagonal numbers (A000326) with themselves.

Table of values

n a(n)
0 1
1 10
2 49
3 164
4 434
5 980
6 1974
7 3648
8 6303
9 10318
10 16159
11 24388
12 35672
13 50792
14 70652
15 96288
16 128877
17 169746
18 220381
19 282436
20 357742
21 448316
22 556370
23 684320
24 834795
25 1010646
26 1214955
27 1451044
28 1722484
29 2033104
30 2387000
31 2788544
32 3242393
33 3753498
34 4327113
35 4968804
36 5684458

List of values

[1, 10, 49, 164, 434, 980, 1974, 3648, 6303, 10318, 16159, 24388, 35672, 50792, 70652, 96288, 128877, 169746, 220381, 282436, 357742, 448316, 556370, 684320, 834795, 1010646, 1214955, 1451044, 1722484, 2033104, 2387000, 2788544, 3242393, 3753498, 4327113, 4968804, 5684458]

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

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