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.

A111154 a(n) = sum(k=0,n,B_k*A000629(k)*A000629(n-k)) where B_k is the k-th Bernoulli number.

Table of values

n a(n)
0 1
1 1
2 5
3 22
4 125
5 948
6 8627
7 86618
8 970649
9 13105048
10 206672615
11 3084750894
12 39005776445
13 972651041372
14 45030832321499
15 489627529809250
16 -65060172242461567
17 100399556385989760
18 378285729309697789679
19 921583343151423434486
20 -2826260367937145199562267

List of values

[1, 1, 5, 22, 125, 948, 8627, 86618, 970649, 13105048, 206672615, 3084750894, 39005776445, 972651041372, 45030832321499, 489627529809250, -65060172242461567, 100399556385989760, 378285729309697789679, 921583343151423434486, -2826260367937145199562267]