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.

A178440 Convolution square of A058187, the tetrahedral series with repeats.

Table of values

n a(n)
0 1
1 2
2 9
3 16
4 44
5 72
6 156
7 240
8 450
9 660
10 1122
11 1584
12 2508
13 3432
14 5148
15 6864
16 9867
17 12870
18 17875
19 22880
20 30888
21 38896
22 51272
23 63648
24 82212
25 100776
26 127908
27 155040
28 193800
29 232560
30 286824
31 341088
32 415701
33 490314
34 591261
35 692208
36 826804
37 961400
38 1138500
39 1315600

List of values

[1, 2, 9, 16, 44, 72, 156, 240, 450, 660, 1122, 1584, 2508, 3432, 5148, 6864, 9867, 12870, 17875, 22880, 30888, 38896, 51272, 63648, 82212, 100776, 127908, 155040, 193800, 232560, 286824, 341088, 415701, 490314, 591261, 692208, 826804, 961400, 1138500, 1315600]

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

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