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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.

A299436 G.f.: exp( Sum_{n>=1} A020696(n) * x^n/n ), where A020696(n) = Product_{d|n} (d + 1).

Table of values

n a(n)
0 1
1 2
2 5
3 10
4 24
5 44
6 109
7 198
8 423
9 766
10 1555
11 2730
12 6269
13 11090
14 22127
15 39246
16 77541
17 134242
18 270348
19 467004
20 895797
21 1546922
22 2905899
23 4943126
24 9666435
25 16471506
26 30604583
27 52206218
28 96412319
29 162467222
30 303289098
31 510436808
32 929735638
33 1564811464
34 2818065892
35 4700325864
36 8619686709
37 14378564170
38 25693238857
39 42876196186
40 76267527522
41 126317457712

List of values

[1, 2, 5, 10, 24, 44, 109, 198, 423, 766, 1555, 2730, 6269, 11090, 22127, 39246, 77541, 134242, 270348, 467004, 895797, 1546922, 2905899, 4943126, 9666435, 16471506, 30604583, 52206218, 96412319, 162467222, 303289098, 510436808, 929735638, 1564811464, 2818065892, 4700325864, 8619686709, 14378564170, 25693238857, 42876196186, 76267527522, 126317457712]

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

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