cp's OEIS Frontend

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.

A347829 a(n) = Sum_{k=0..n} 2^k * A000041(k) * A000009(n-k).

Table of values

n a(n)
0 1
1 3
2 11
3 36
4 118
5 351
6 1082
7 3093
8 8984
9 25164
10 70434
11 191808
12 525559
13 1404672
14 3755506
15 9906111
16 26057062
17 67703310
18 175745506
19 451392114
20 1157272780
21 2944110060
22 7468477985
23 18821686554
24 47337840114
25 118344795738
26 295156919969
27 732694232394
28 1814357671094

List of values

[1, 3, 11, 36, 118, 351, 1082, 3093, 8984, 25164, 70434, 191808, 525559, 1404672, 3755506, 9906111, 26057062, 67703310, 175745506, 451392114, 1157272780, 2944110060, 7468477985, 18821686554, 47337840114, 118344795738, 295156919969, 732694232394, 1814357671094]