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 A384510 #15 Aug 20 2025 07:23:07
%S A384510 5,1,4,8,1,7,8,1,9,4,5,9,0,2,3,9,6,8,8,0,9,5,2,6,9,4,8,8,0,4,9,8,8,9,
%T A384510 5,0,7,8,6,3,0,3,6,2,9,0,6,9,4,7,8,9,5,1,9,6,8,0,2,6,4,0,4,6,5,9,4,7,
%U A384510 5,6,4,1,0,5,9,7,5,6,5,7,9,2,0,1,8,5,4,4,4,0,1,7,3,2,6,1,7,7,0,8,4,4,4,6,7
%N A384510 Decimal expansion of Product_{k>=0} (1 + 1/k!^2).
%e A384510 5.1481781945902396880952694880498895078630362906948...
%o A384510 (PARI) prodinf(k=0, 1 + 1/k!^2)
%Y A384510 Cf. A001044, A238695.
%K A384510 nonn,cons
%O A384510 1,1
%A A384510 _Kelvin Voskuijl_, Aug 14 2025