23442
domain: N
Appears in sequences
- Number of 3 X n binary matrices with no zero rows or columns, up to row and column permutation.at n=17A055609
- Number of (n+1)X3 0..3 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.at n=2A203735
- Number of (n+1)X4 0..3 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.at n=1A203736
- T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.at n=7A203741
- T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively.at n=8A203741
- Number of (w,x,y,z) with all terms in {1,...,n} and w^2>x*y*z.at n=20A212066
- Minimal natural number (in decimal representation) with n prime substrings in base-5 representation (substrings with leading zeros are considered to be nonprime).at n=16A217305
- Number of (n+2)X(1+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.at n=8A251812
- T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every row, column, diagonal or antidiagonal in each 3X3 subblock summing to a prime.at n=36A251819
- Triangle read by rows, T(n, k) = A094088(n) * binomial(n, k).at n=12A362586