27424
domain: N
Appears in sequences
- Coordination sequence for 4-dimensional face-centered cubic orthogonal lattice.at n=16A008529
- Potential magic constants of a 10 X 10 magic square composed of consecutive primes.at n=35A192087
- (n-1)-st elementary symmetric function of the first n terms of (1,2,1,4,1,6,1,8,...)=(A124625 for n>1).at n=10A203192
- Number of (n+2)X(2+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.at n=6A256023
- Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.at n=1A256028
- T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.at n=29A256029
- T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 1 and no column sum 1.at n=34A256029
- Product of n and the sum of all divisors of all positive integers <= n.at n=31A256533
- Table read by rows: T(n,k) = number of k-gons, k >= 3, formed inside a square with edge length 1 by the straight line segments mutually connecting all vertices and points that divide the sides into segments with lengths equal to the Farey series of order n = A006842(n,m)/A006843(n,m), m = 1..A005728(n).at n=10A358889
- Composite numbers k such that binomial(4*k, k) == 4^k (mod k).at n=15A390043