76309

Appears in sequences

• Number of (n+2)X4 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=2A185470
• Number of (n+2)X5 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=1A185471
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=7A185477
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.at n=8A185477
• Numbers k such that (598*10^k - 31)/9 is prime.at n=28A281991
• a(n) = number of Egyptian fractions 1 = 1/x_1 + ... + 1/x_n such that 1 <= x_1 <= ... <= x_n and x_k | x_n for all k = 1..n.at n=6A374582