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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.

A336637 Sum_{n>=0} a(n) * x^n / (n!)^2 = exp(BesselI(0,2*sqrt(x))^4 - 1).

Table of values

n a(n)
0 1
1 4
2 60
3 1648
4 71612
5 4448384
6 370135632
7 39480942848
8 5227020747708
9 837878205997216
10 159457868003008640
11 35459969754432262208
12 9093585253916177728592
13 2659611377508767798535488
14 878768601771275773332660736
15 325350340926291926090183214848

List of values

[1, 4, 60, 1648, 71612, 4448384, 370135632, 39480942848, 5227020747708, 837878205997216, 159457868003008640, 35459969754432262208, 9093585253916177728592, 2659611377508767798535488, 878768601771275773332660736, 325350340926291926090183214848]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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