A179895 a(n) = smallest number m such that m^2 has exactly n decimal digits n.

1, 1, 15, 586, 212, 22485, 68313, 278874, 623609, 3082207

Offset: 0

Author

Zak Seidov, Jul 31 2010

Keywords

• base
• fini
• full
• nonn

Examples

			a(0)=1 because 1^1=1 has zero 0's
a(1)=1 because 1^1=1 has one 1's
a(8)=623609 because 623609^2=388888184881 has eight 8's
a(9)=3082207 because3082207^2=9499999990849 has nine 9's.
		

Crossrefs

Cf. A086935