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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.

A033954 Second 10-gonal (or decagonal) numbers: n*(4*n+3).

Table of values

n a(n)
0 0
1 7
2 22
3 45
4 76
5 115
6 162
7 217
8 280
9 351
10 430
11 517
12 612
13 715
14 826
15 945
16 1072
17 1207
18 1350
19 1501
20 1660
21 1827
22 2002
23 2185
24 2376
25 2575
26 2782
27 2997
28 3220
29 3451
30 3690
31 3937
32 4192
33 4455
34 4726
35 5005
36 5292
37 5587
38 5890
39 6201
40 6520
41 6847
42 7182
43 7525
44 7876
45 8235

List of values

[0, 7, 22, 45, 76, 115, 162, 217, 280, 351, 430, 517, 612, 715, 826, 945, 1072, 1207, 1350, 1501, 1660, 1827, 2002, 2185, 2376, 2575, 2782, 2997, 3220, 3451, 3690, 3937, 4192, 4455, 4726, 5005, 5292, 5587, 5890, 6201, 6520, 6847, 7182, 7525, 7876, 8235]

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

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