A034986 a(n)^2 is smallest square number starting with a string of n 5's.

23, 235, 745, 2357, 235702, 745356, 745356, 23570226, 2357022603, 2357022604, 7453559925, 7453559925, 7453559924999, 74535599249993, 74535599249993, 7453559924999299, 7453559924999299, 745355992499929899, 7453559924999298988, 7453559924999298988

Offset: 1

Author

Patrick De Geest, Nov 15 1998

Keywords

• nonn
• base

Examples

			a(5) = 235702^2 = {55555}432804.
		

Crossrefs

Cf. A034987.

Extensions

More terms from Francisco Salinas (franciscodesalinas(AT)hotmail.com), Dec 23 2001