2836008

Appears in sequences

• Numbers k such that sigma(k) = 3*sigma(k+1).at n=19A217791
• Number of nX7 0..1 arrays with no more than floor(nX7/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.at n=4A223011
• Number of 5Xn 0..1 arrays with no more than floor(5Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.at n=6A223016