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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.

A145131 Expansion of x/((1 - x - x^4)*(1 - x)^2).

Table of values

n a(n)
0 0
1 1
2 3
3 6
4 10
5 16
6 25
7 38
8 56
9 81
10 116
11 165
12 233
13 327
14 457
15 637
16 886
17 1230
18 1705
19 2361
20 3267
21 4518
22 6245
23 8629
24 11920
25 16463
26 22734
27 31390
28 43338
29 59830
30 82594
31 114015
32 157385
33 217248
34 299876
35 413926
36 571347
37 788632
38 1088546
39 1502511
40 2073898
41 2862571

List of values

[0, 1, 3, 6, 10, 16, 25, 38, 56, 81, 116, 165, 233, 327, 457, 637, 886, 1230, 1705, 2361, 3267, 4518, 6245, 8629, 11920, 16463, 22734, 31390, 43338, 59830, 82594, 114015, 157385, 217248, 299876, 413926, 571347, 788632, 1088546, 1502511, 2073898, 2862571]

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

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