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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.

A002623 Expansion of 1/((1-x)^4*(1+x)).

Table of values

n a(n)
0 1
1 3
2 7
3 13
4 22
5 34
6 50
7 70
8 95
9 125
10 161
11 203
12 252
13 308
14 372
15 444
16 525
17 615
18 715
19 825
20 946
21 1078
22 1222
23 1378
24 1547
25 1729
26 1925
27 2135
28 2360
29 2600
30 2856
31 3128
32 3417
33 3723
34 4047
35 4389
36 4750
37 5130
38 5530
39 5950
40 6391
41 6853
42 7337
43 7843
44 8372
45 8924
46 9500

List of values

[1, 3, 7, 13, 22, 34, 50, 70, 95, 125, 161, 203, 252, 308, 372, 444, 525, 615, 715, 825, 946, 1078, 1222, 1378, 1547, 1729, 1925, 2135, 2360, 2600, 2856, 3128, 3417, 3723, 4047, 4389, 4750, 5130, 5530, 5950, 6391, 6853, 7337, 7843, 8372, 8924, 9500]

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

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