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.

A177127 Sequence defined by the recurrence formula a(n+1)=sum(a(p)*a(n-p)+k,p=0..n)+l for n>=1, with here a(0)=1, a(1)=6, k=0 and l=1.

Table of values

n a(n)
0 1
1 6
2 13
3 63
4 283
5 1492
6 8019
7 45270
8 261219
9 1542254
10 9251023
11 56269627
12 346115245
13 2149556612
14 13459568885
15 84879754663
16 538612428155
17 3436623582022
18 22034604531623
19 141897138868677
20 917376314956897

List of values

[1, 6, 13, 63, 283, 1492, 8019, 45270, 261219, 1542254, 9251023, 56269627, 346115245, 2149556612, 13459568885, 84879754663, 538612428155, 3436623582022, 22034604531623, 141897138868677, 917376314956897]