77199

Appears in sequences

• Least k such that gcd(prime(k)+1, prime(k+1)+1) = 2n.at n=31A067603
• Number of 5Xn 0..1 arrays with every element equal to 0, 1, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=8A303200