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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.

A063489 a(n) = (2*n-1)*(5*n^2-5*n+6)/6.

Table of values

n a(n)
1 1
2 8
3 30
4 77
5 159
6 286
7 468
8 715
9 1037
10 1444
11 1946
12 2553
13 3275
14 4122
15 5104
16 6231
17 7513
18 8960
19 10582
20 12389
21 14391
22 16598
23 19020
24 21667
25 24549
26 27676
27 31058
28 34705
29 38627
30 42834
31 47336
32 52143
33 57265
34 62712
35 68494
36 74621
37 81103
38 87950
39 95172
40 102779
41 110781
42 119188

List of values

[1, 8, 30, 77, 159, 286, 468, 715, 1037, 1444, 1946, 2553, 3275, 4122, 5104, 6231, 7513, 8960, 10582, 12389, 14391, 16598, 19020, 21667, 24549, 27676, 31058, 34705, 38627, 42834, 47336, 52143, 57265, 62712, 68494, 74621, 81103, 87950, 95172, 102779, 110781, 119188]

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

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