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.

A176612 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)=2, k=1 and l=1.

Table of values

n a(n)
0 1
1 2
2 7
3 22
4 77
5 297
6 1217
7 5192
8 22807
9 102427
10 468067
11 2169227
12 10170687
13 48155437
14 229916207
15 1105682842
16 5350944837
17 26040130117
18 127349649297
19 625556921097
20 3085016483557
21 15268791946687
22 75816909660597

List of values

[1, 2, 7, 22, 77, 297, 1217, 5192, 22807, 102427, 468067, 2169227, 10170687, 48155437, 229916207, 1105682842, 5350944837, 26040130117, 127349649297, 625556921097, 3085016483557, 15268791946687, 75816909660597]