988455

Appears in sequences

• Numbers k such that phi(k) = sigma(k+1) - sigma(k).at n=11A066152
• Number of 4Xn 0..1 arrays with exactly floor(4Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..1 order.at n=9A222512