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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.

A063493 a(n) = (2*n-1)*(13*n^2-13*n+6)/6.

Table of values

n a(n)
1 1
2 16
3 70
4 189
5 399
6 726
7 1196
8 1835
9 2669
10 3724
11 5026
12 6601
13 8475
14 10674
15 13224
16 16151
17 19481
18 23240
19 27454
20 32149
21 37351
22 43086
23 49380
24 56259
25 63749
26 71876
27 80666
28 90145
29 100339
30 111274
31 122976
32 135471
33 148785
34 162944
35 177974
36 193901
37 210751
38 228550
39 247324
40 267099

List of values

[1, 16, 70, 189, 399, 726, 1196, 1835, 2669, 3724, 5026, 6601, 8475, 10674, 13224, 16151, 19481, 23240, 27454, 32149, 37351, 43086, 49380, 56259, 63749, 71876, 80666, 90145, 100339, 111274, 122976, 135471, 148785, 162944, 177974, 193901, 210751, 228550, 247324, 267099]

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

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