25526

Appears in sequences

• Numbers having four 6's in base 8.at n=7A043448
• Integers k > 10577 such that the 'Reverse and Add!' trajectory of k joins the trajectory of 10577.at n=12A063434
• Numbers k such that k and k^2 use only the digits 1, 2, 5, 6 and 7.at n=41A137004
• Number of 4-step one space leftwards or up, two space rightwards or down asymmetric rook's tours on an n X n board summed over all starting positions.at n=22A187299
• Number of (n+2) X 3 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=6A202640
• Number of (n+2)X9 binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=0A202646
• T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=21A202647
• T(n,k)=Number of (n+2)X(k+2) binary arrays avoiding patterns 000 and 111 in rows, columns and nw-to-se diagonals.at n=27A202647
• Composite numbers k such that phi(x) = psi(k)*phi(k) has no solution.at n=21A292714