a(1) = 9, a(n) = smallest square beginning with the digit reversal of a(n-1). a(n) > a(n-1) and a(n) is not == 0 (mod 10).

A087590

a(1) = 9, a(n) = smallest square beginning with the digit reversal of a(n-1). a(n) > a(n-1) and a(n) is not == 0 (mod 10).

Terms

    a(0) =9a(1) =961a(2) =169744a(3) =44796145801

External references