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 A047687 #15 Jun 08 2025 04:59:23
%S A047687 1,1,1,0,-1,-1,-1,1,31,1,-2951,-1,181,2417,58913,-5699,-52635599,
%T A047687 -19993,1126610929,3631,27069353,-6050353,-118802490419,47438,
%U A047687 11162375477471,41478716501,-8529964147714967,-3818348299,-2610006147952249,36698180928319
%N A047687 Numerators of coefficients in Taylor series for exp(sin(x)).
%D A047687 CRC Standard Mathematical Tables and Formulae, 30th ed. 1996, p. 42.
%H A047687 M. F. Hasler, <a href="/A047687/b047687.txt">Table of n, a(n) for n = 0..499</a>
%e A047687 1 + 1*x + (1/2)*x^2 - (1/8)*x^4 - (1/15)*x^5 - (1/240)*x^6 + (1/90)*x^7 + (31/5760)*x^8 + ...
%t A047687 Numerator[CoefficientList[Series[Exp[Sin[x]],{x,0,30}],x]] (* _Harvey P. Dale_, Jan 22 2015 *)
%o A047687 (PARI) A047687_upto(N=99)=apply(numerator, Vec(exp(sin(x+O(x^N))))) \\ _M. F. Hasler_, Jun 07 2025
%Y A047687 Cf. A047688 (denominators), A002017 (e.g.f.).
%K A047687 sign,easy,frac
%O A047687 0,9
%A A047687 _N. J. A. Sloane_