540553

Appears in sequences

• Numerators of Taylor series for sec(x) = 1/cos(x).at n=6A046976
• Numerator of S(n)/Pi^n, where S(n) = Sum_{k=-inf..+inf} (4k+1)^(-n).at n=12A050970
• Numerators of the coefficients in the Taylor expansion of sec(x) + tan(x) around x=0.at n=12A099612
• Numerators of an approximation to zeta(n)/Pi^n.at n=12A340472