142610
domain: N
Appears in sequences
- Numbers k such that sigma(k) = phi(k+1) + phi(k) + phi(k-1).at n=24A065986
- Number of nX4 0..2 arrays with exactly floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..2 order.at n=7A223030
- Number of nX4 0..2 arrays with no more than floor(nX4/2) elements equal to at least one king-move neighbor, with new values introduced in row major 0..2 order.at n=7A223470