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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.

A152777 7 times heptagonal numbers: a(n) = 7*n*(5*n-3)/2.

Table of values

n a(n)
0 0
1 7
2 49
3 126
4 238
5 385
6 567
7 784
8 1036
9 1323
10 1645
11 2002
12 2394
13 2821
14 3283
15 3780
16 4312
17 4879
18 5481
19 6118
20 6790
21 7497
22 8239
23 9016
24 9828
25 10675
26 11557
27 12474
28 13426
29 14413
30 15435
31 16492
32 17584
33 18711
34 19873
35 21070
36 22302
37 23569
38 24871
39 26208
40 27580
41 28987
42 30429

List of values

[0, 7, 49, 126, 238, 385, 567, 784, 1036, 1323, 1645, 2002, 2394, 2821, 3283, 3780, 4312, 4879, 5481, 6118, 6790, 7497, 8239, 9016, 9828, 10675, 11557, 12474, 13426, 14413, 15435, 16492, 17584, 18711, 19873, 21070, 22302, 23569, 24871, 26208, 27580, 28987, 30429]

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

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