A050634 a(n+1) is next smallest square ending with a(n), initial term is 1.

1, 81, 1681, 1461681, 220861461681, 31071113326220861461681, 36510705834446371569631071113326220861461681, 268496773864458678522722709023395604054900436510705834446371569631071113326220861461681

Offset: 1

Author

Patrick De Geest, Jul 15 1999

Keywords

• nonn
• base

Crossrefs

Cf. A050635, A048557, A050628.

Programs

Mathematica

d[n_]:=IntegerDigits[n]; t={m=1}; Do[If[Take[d[x=n^2],-Length[y=d[m]]]==y,AppendTo[t,m=x]],{n,Flatten[Table[10k+{-1,1},{k,50000}]]}]; t (* Jayanta Basu, May 30 2013 *)

Extensions

More terms from Jonathan Cross (jcross(AT)wcox.com), Oct 09 2001