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.

A259399 a(n) = Sum_{k=0..n} p(k)^2, where p(k) is the partition function A000041.

Table of values

n a(n)
0 1
1 2
2 6
3 15
4 40
5 89
6 210
7 435
8 919
9 1819
10 3583
11 6719
12 12648
13 22849
14 41074
15 72050
16 125411
17 213620
18 361845
19 601945
20 995074
21 1622338
22 2626342
23 4201367
24 6681992
25 10515756
26 16449852
27 25509952
28 39333476
29 60172701
30 91577517
31 138390481
32 208096282
33 310976731
34 462512831

List of values

[1, 2, 6, 15, 40, 89, 210, 435, 919, 1819, 3583, 6719, 12648, 22849, 41074, 72050, 125411, 213620, 361845, 601945, 995074, 1622338, 2626342, 4201367, 6681992, 10515756, 16449852, 25509952, 39333476, 60172701, 91577517, 138390481, 208096282, 310976731, 462512831]