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.
%I A060456 #19 Jul 02 2025 16:02:01
%S A060456 1,23,85,230,535,1124,2197,4071,7228,12391,20631,33506,53252,83047,
%T A060456 127358,192400,286751,422150,614551,885479,1263794,1787960,2508951,
%U A060456 3493969,4831163,6635623,9056943,12288743,16580630,22253151,29716459
%N A060456 a(n) = floor(exp(Pi*sqrt(n))).
%C A060456 Some of these values are very close to integers; e.g., a(17)= 422150.9976756804516....
%H A060456 Harry J. Smith, <a href="/A060456/b060456.txt">Table of n, a(n) for n = 0..1000</a>
%p A060456 Digits := 100; for n from 0 to 40 do printf(`%d,`,floor( exp(Pi*sqrt(n)))) od:
%t A060456 Table[Floor[Exp[Pi Sqrt[n]]],{n,0,40}] (* _Harvey P. Dale_, Aug 26 2020 *)
%o A060456 (PARI) { default(realprecision, 100); for (n=0, 1000, write("b060456.txt", n, " ", floor(exp(Pi*sqrt(n)))); ) } \\ _Harry J. Smith_, Jul 05 2009
%K A060456 easy,nonn
%O A060456 0,2
%A A060456 _Jason Earls_, Apr 08 2001
%E A060456 More terms from _James Sellers_, Apr 11 2001