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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.

A226405 Expansion of x/((1-x-x^3)*(1-x)^3).

Table of values

n a(n)
0 0
1 1
2 4
3 10
4 21
5 40
6 71
7 120
8 196
9 312
10 487
11 749
12 1139
13 1717
14 2571
15 3830
16 5683
17 8407
18 12408
19 18281
20 26898
21 39537
22 58071
23 85245
24 125082
25 183478
26 269074
27 394534
28 578418
29 847927
30 1242926
31 1821840
32 2670295
33 3913782
34 5736217
35 8407142
36 12321590
37 18058510
38 26466393

List of values

[0, 1, 4, 10, 21, 40, 71, 120, 196, 312, 487, 749, 1139, 1717, 2571, 3830, 5683, 8407, 12408, 18281, 26898, 39537, 58071, 85245, 125082, 183478, 269074, 394534, 578418, 847927, 1242926, 1821840, 2670295, 3913782, 5736217, 8407142, 12321590, 18058510, 26466393]

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

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