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%I #5 Jul 09 2021 14:58:52
%S 1,6,1,60,1,126,1,120,1,66,1,16380,1,6,1,4080,1,7182,1,3300,1,138,1,
%T 32760,1,6,1,1740,1,42966,1,8160,1,6,1,34545420,1,6,1,270600,1,37926,
%U 1,1380,1,282,1,1113840,1,66,1,3180,1,21546,1,3480,1,354,1,1703601900
%N a(n) = denominator(4^(n + 1)*zeta(-n, 1/4)).
%e Rational sequence starts: 1, 1/6, -1, -7/60, 5, 31/126, -61, -127/120, 1385, ...
%p seq(denom(4^(n + 1)*Zeta(0, -n, 1/4)), n = 0..59);
%o (SageMath)
%o def a(n): return 4^(n+1)*hurwitz_zeta(-n, 1/4)
%o print([a(n).denominator() for n in (0..59)])
%Y Cf. A344917 (numerators).
%K nonn,frac
%O 0,2
%A _Peter Luschny_, Jul 09 2021
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