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 A378132 #9 Apr 25 2025 21:08:48
%S A378132 3,1,5,1,2,1,2,0,0,2,1,5,3,8,9,7,5,3,8,2,1,7,6,8,9,9,4,2,2,4,8,6,8,8,
%T A378132 5,5,6,6,4,5,5,1,9,3,5,4,5,1,4,8,5,2,4,3,8,4,7,0,5,4,0,3,5,7,3,8,4,2,
%U A378132 5,9,8,3,7,6,8,2,7,4,6,1,2,1,6,1,0,8,6,9,4,3
%N A378132 Decimal expansion of L^4/15, where L is the lemniscate constant (A062539).
%H A378132 Wikipedia, <a href="https://en.wikipedia.org/wiki/Lemniscate_constant">Lemniscate constant</a> (includes this constant).
%H A378132 <a href="/index/Ga#gamma_function">Index to sequences related to the Gamma function</a>.
%F A378132 Equals Pi^6/(60*Gamma(3/4)^8) = A092732/(60*A068465^8).
%F A378132 Equals Sum_{z is a Gaussian integer != 0} 1/z^4.
%F A378132 Equals G_4(i), where G_4 is the Eisenstein series of weight 4.
%e A378132 3.15121200215389753821768994224868855664551935451...
%t A378132 First[RealDigits[Pi^6/(60*Gamma[3/4]^8), 10, 100]]
%Y A378132 Cf. A062539, A068465, A092732.
%Y A378132 Cf. A377999, A378128, A378129, A378130, A378131.
%K A378132 nonn,cons,easy
%O A378132 1,1
%A A378132 _Paolo Xausa_, Nov 18 2024