300540195

Appears in sequences

• a(n) = binomial(n, floor(n/2)).at n=31A001405
• a(n) = binomial(2*n+1, n+1): number of ways to put n+1 indistinguishable balls into n+1 distinguishable boxes = number of (n+1)-st degree monomials in n+1 variables = number of monotone maps from 1..n+1 to 1..n+1.at n=15A001700
• Numerators in expansion of 1/sqrt(1-x).at n=16A001790
• Numerators in expansion of (1 - x)^(-3/2).at n=15A001803
• Coefficients of Legendre polynomials.at n=15A002461
• Least integer having Radon random number n.at n=30A002661
• Numerator of n!!/(n+1)!! (cf. A006882).at n=31A004730
• a(0) = 1; thereafter a(n) = denominator of (n-2)!! / (n-1)!!.at n=32A004731
• Numerator of average distance traveled by n-dimensional fly.at n=30A004734
• Valence of graph of maximal intersecting families of sets.at n=30A007007
• a(1)=1; for n >= 1, a(n+1) = lcm(a(n),n) / gcd(a(n),n).at n=31A008339
• Binomial coefficient C(31,n).at n=15A010947
• Binomial coefficient C(31,n).at n=16A010947
• a(n) = binomial(n,15).at n=16A010968
• a(n) = binomial(n,16).at n=15A010969
• Denominator of rational part of Haar measure on Grassmannian space G(n,1).at n=32A036069
• a(n) = binomial(n, floor((n-1)/2)).at n=31A037952
• Numerators in the Taylor series for arccosh(x) - log(2*x).at n=15A052468
• Number of symmetric types of (5,2n)-hypergraphs under action of complementing group C(5,2).at n=15A055788
• Central binomial coefficient A001405(n) divided by its characteristic cube divisor A056201(n).at n=30A056202