638512875
domain: N
Appears in sequences
- Denominators of zeta(2*n)/Pi^(2*n).at n=6A002432
- Denominators in Taylor series for cot x.at n=6A036278
- Denominators in the Taylor series for tan(x).at n=7A036279
- Denominator of n^(n-2)/n!.at n=15A036503
- Denominators of Taylor series for tan(x + Pi/4).at n=15A046983
- Largest odd divisor of n!.at n=16A049606
- Largest odd divisor of n!.at n=15A049606
- Denominators in expansion of exp(2x)/(1-x).at n=15A053485
- Denominators of the coefficients in exp(2x/(1-x)) power series.at n=15A067655
- Denominators of the coefficients in exp(2x/(1-x)) power series.at n=14A067655
- a(n) = (2^n)!/2^(2^n-1).at n=4A067667
- a(n) = gcd(n!!, (n-1)!!) where n!! = A006882.at n=32A095987
- a(n) = gcd(n!!, (n-1)!!) where n!! = A006882.at n=31A095987
- a(n) = gcd(n!!, (n-1)!!) where n!! = A006882.at n=33A095987
- a(n) = gcd(n!!, (n-1)!!) where n!! = A006882.at n=30A095987
- a(n) = largest divisor of n! that is coprime to n.at n=15A095996
- Number of meaningfully different ways to design a neutral single-elimination tournament with n teams.at n=14A096351
- Number of meaningfully different ways to design a neutral single-elimination tournament with n teams.at n=15A096351
- Denominators of the coefficients in the Taylor expansion of sec(x) + tan(x) around x=0.at n=15A099617
- Denominators of coefficients in expansion of x^2*(1-exp(-2*x))^(-2).at n=13A104007