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.

A247496 a(n) = n!*[x^n](exp(n*x)*BesselI_{1}(2*x)/x), n>=0, main diagonal of A247495.

Table of values

n a(n)
0 1
1 1
2 5
3 36
4 354
5 4425
6 67181
7 1200745
8 24699662
9 574795035
10 14930563042
11 428235433978
12 13442267711940
13 458373150076335
14 16872717817840509
15 666835739823870900
16 28163028244810505622
17 1265837029802096365275
18 60330098878933736719190
19 3039079334694016053006276

List of values

[1, 1, 5, 36, 354, 4425, 67181, 1200745, 24699662, 574795035, 14930563042, 428235433978, 13442267711940, 458373150076335, 16872717817840509, 666835739823870900, 28163028244810505622, 1265837029802096365275, 60330098878933736719190, 3039079334694016053006276]