64493

Appears in sequences

• Numbers k such that k*(k+5) is a palindrome.at n=13A028558
• Maximal number of regions obtained by a straight line drawing of the complete bipartite graph K_{n,n}.at n=22A117717
• Number of (n+1) X (3+1) 0..2 arrays with every 2 X 2 subblock summing to 4 and no 2 X 2 subblock having exactly two nonzero entries.at n=12A251144
• Number of length 1+4 0..n arrays with every five consecutive terms having the maximum of some two terms equal to the minimum of the remaining three terms.at n=11A254699