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.

A298691 G.f. A(x) satisfies: A(x) = Sum_{n>=0} binomial( n*(n+1)/2, n) * x^n / A(x)^( n*(n-1)/2 ).

Table of values

n a(n)
0 1
1 1
2 3
3 17
4 144
5 1647
6 24037
7 429483
8 9088749
9 221942779
10 6130801041
11 188708846991
12 6398116247554
13 236786117903526
14 9495515095867953
15 410104221125229354
16 18977504682428845671
17 936731766873748776822
18 49127713187418767376060
19 2728178479576867266738579
20 159924801506251429348644138
21 9868564065320443974954599471

List of values

[1, 1, 3, 17, 144, 1647, 24037, 429483, 9088749, 221942779, 6130801041, 188708846991, 6398116247554, 236786117903526, 9495515095867953, 410104221125229354, 18977504682428845671, 936731766873748776822, 49127713187418767376060, 2728178479576867266738579, 159924801506251429348644138, 9868564065320443974954599471]