64152
domain: N
Appears in sequences
- Number of labeled n-node T_0-hypergraphs without multiple hyperedges (empty hyperedge included).at n=4A059085
- a(n) = sum of n-th column in array in A100452.at n=41A100454
- Square array T(M,N) read by antidiagonals: number of dimer tilings of a 2M x 2N Klein bottle.at n=24A103999
- Triangle, read by rows, equal to the matrix square of A113983.at n=47A113988
- Column 2 of triangle A113988, which is the matrix square of A113983: a(n) = [A113983^2](n+2,2).at n=7A113991
- Numbers with prime factorization pq^3r^6.at n=14A190467
- Number of (w,x,y,z) with all terms in {1,...,n} and w>=2x and y>3z.at n=36A212522
- a(n) = (3*n+7)*n^2.at n=27A257042
- Number of ordered ways of writing n-th triangular number as a sum of n squares of nonnegative integers.at n=9A299031
- Numbers k that have at least two different representations as the product of a number and of its decimal digits.at n=24A336944
- a(n) = Product_{1<=j,k<=n} (4*sin(Pi*(4*j-1)/(4*n))^2 + 4*sin(Pi*(2*k-1)/(2*n))^2).at n=3A340557
- Indices of record values in A350228.at n=28A350244