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.

A325289 G.f. A(x) satisfies: Sum_{n>=0} x^n*A(x)^(n*(n+1)/2) = Sum_{n>=0} x^n*(1+x)^(n^2).

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 9
5 41
6 200
7 1096
8 6440
9 40095
10 262298
11 1790395
12 12699751
13 93311273
14 708519038
15 5549751855
16 44780255681
17 371785828813
18 3173019719939
19 27813799706468
20 250222091088035
21 2308676057468240
22 21831456961064288
23 211449264040904335
24 2096345122112307560
25 21261235260097878478
26 220457711039776064974
27 2335722548273384751833

List of values

[1, 1, 1, 3, 9, 41, 200, 1096, 6440, 40095, 262298, 1790395, 12699751, 93311273, 708519038, 5549751855, 44780255681, 371785828813, 3173019719939, 27813799706468, 250222091088035, 2308676057468240, 21831456961064288, 211449264040904335, 2096345122112307560, 21261235260097878478, 220457711039776064974, 2335722548273384751833]