A141817 "Early bird" squares: write the natural numbers in a string 12345678910111213.... Sequence gives squares which occur in the string ahead of their natural place.

64, 81, 121, 324, 361, 441, 484, 529, 625, 676, 729, 784, 841, 961, 1521, 1681, 2116, 2401, 2601, 2916, 3025, 3136, 3249, 3364, 3481, 3721, 4225, 4356, 4624, 4761, 5041, 5184, 5329, 5476, 5625, 5929, 6084, 6241, 6400, 6561, 6724, 7056, 7225, 7396, 7569

Offset: 1

Author

Paolo P. Lava and Giorgio Balzarotti, Jul 08 2008

Keywords

• easy
• nonn
• base

Comments

Subset of A116700

Examples

			"64" appears in ....44454"64"74849, ahead of its position after "63", so is a member.
		

Crossrefs

Cf. A116700.