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.

A386509 a(0) = 1; a(n) = a(n-1) + Sum_{k=0..n-1} (1 + k) * k^6 * binomial(n-1,k) * a(k) * a(n-1-k).

Table of values

n a(n)
0 1
1 1
2 3
3 583
4 1702357
5 34872788861
6 3269533221246901
7 1067826281292319819285
8 1005038096045094314876257929
9 2371191405228277266497568590592937
10 12601507027818562471139233302156639660841
11 138616715922712004054565802733773706346507326441

List of values

[1, 1, 3, 583, 1702357, 34872788861, 3269533221246901, 1067826281292319819285, 1005038096045094314876257929, 2371191405228277266497568590592937, 12601507027818562471139233302156639660841, 138616715922712004054565802733773706346507326441]