A134847 Smallest square number with exactly n zero digits whose square root does not contain any zero digits.

1024, 60025, 200704, 14040009, 600005025, 3906000004, 62000004004, 6000305000704, 40880000700009, 39000000020004, 60000500050500025, 249000000005004004, 6000000050052001009, 600201000902004000004, 800000000087008020001, 62000004003004008000004

Offset: 1

Author

Artur Jasinski, Nov 13 2007

Keywords

• nonn
• base

Comments

a(26) <= 20000000000000000000005837591200400708766761.

For corresponding square roots and more information see A134846.

a(26) <= 240002009020200000020200002000000001. - Giovanni Resta, Jun 28 2019

Examples

			a(1) = 1024 because 1024 is the smallest square with one zero whose square root has no zero: 32.
		

Links

• Giovanni Resta, Table of n, a(n) for n = 1..19

Crossrefs

Cf. A134843, A134844, A134845, A134846.

Extensions

Edited and a(11)-a(13) added by Klaus Brockhaus, Nov 20 2007

a(14)-a(16) from Giovanni Resta, Jun 28 2019