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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.

A367101 a(n) = Sum_{k=0..n} A000108(k) * A000009(k).

Table of values

n a(n)
0 1
1 2
2 4
3 14
4 42
5 168
6 696
7 2841
8 11421
9 50317
10 218277
11 923709
12 4043889
13 17416089
14 76253769
15 338014584
16 1469460024
17 6395962044
18 28367342244
19 123799554504
20 543903261384
21 2403339554904
22 10545287718864
23 46223487538464
24 203591793511992
25 893988182518176
26 3924601439423256

List of values

[1, 2, 4, 14, 42, 168, 696, 2841, 11421, 50317, 218277, 923709, 4043889, 17416089, 76253769, 338014584, 1469460024, 6395962044, 28367342244, 123799554504, 543903261384, 2403339554904, 10545287718864, 46223487538464, 203591793511992, 893988182518176, 3924601439423256]

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

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