71351280

Appears in sequences

• a(0) = 1, a(1) = 5, a(n+1) = 5*a(n) + a(n-1).at n=11A052918
• Least integer k such that the set of the divisors of k contains exactly n pairs of numbers having the following property: for each pair of two distinct divisors, the reversal of one is equal to the other.at n=31A260705