5014575

Appears in sequences

• Numerators in expansion of 1/sqrt(1-x).at n=14A001790
• Coefficients of Legendre polynomials.at n=13A002461
• Numerator of n!!/(n+1)!! (cf. A006882).at n=27A004730
• Numerator of average distance traveled by n-dimensional fly.at n=26A004734
• Denominator of rational part of Haar measure on Grassmannian space G(n,1).at n=28A036069
• Numerators in the Taylor series for arccosh(x) - log(2*x).at n=13A052468
• Numerators of Taylor series expansion of arcsin(x). Also arises from arccos(x), arccsc(x), arcsec(x), arcsinh(x).at n=14A055786
• Numerator of probability that there is no error when average of n numbers is computed, assuming errors of +1, -1 are possible and they each occur with p = 1/4.at n=7A061548
• Number of cycles in range [A014137(n-1)..A014138(n-1)] of permutation A089851/A089853.at n=15A089847
• a(0) = 1; for n>0, if gcd(a(n-1),n) = 1 then a(n) = n*a(n-1) else a(n) = least integer multiple of a(n-1)/n.at n=28A094299
• a(n) = LCM of the integers, from n/2 to n, which are coprime to n.at n=27A124444
• Numerators of coefficient of x^(n+1/2) in the series expansion of the haversine.at n=14A143581
• Denominators of the BG1[ -5,n] coefficients of the BG1 matrix.at n=14A162444
• Odd part of the swinging factorial A056040.at n=28A163590
• Denominator of sum of fractions A182972(k) / A182973(k) such that A182972(k) + A182973(k) = n.at n=25A245678
• Denominators of the terms of Lehmer's series S_2(2), where S_k(x) = Sum_{n>=1} n^k*x^n/binomial(2*n, n).at n=13A259853
• a(n) = denominator(n!! / (n - 1)!!).at n=28A380910