79221

Appears in sequences

• Write 0, 1, ..., n in binary and add as if they were decimal numbers.at n=22A067894
• T(n,k) = Number of (n+k-1) X (n+k-1) binary arrays with k 1s in every row and column with rows and columns in lexicographically nondecreasing order.at n=42A227061
• Number of n X n binary matrices with exactly 3 ones in each row and column, and with rows and columns in lexicographically nondecreasing order.at n=8A229162
• Triangle read by rows, T(n,m) = (1/n)*Sum_{i=1..n} C(n,i-1)*C(n,i)*C(n,m+1-i), T(0,0)=0, m<2n.at n=64A296186
• Triangle read by rows, T(n,m) = (1/n)*Sum_{i=1..n} C(n,i-1)*C(n,i)*C(n,m+1-i), T(0,0)=0, m<2n.at n=65A296186