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

1,1

Comments

Subset of A116700

Links

Table of n, a(n) for n=1..45.

Example

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

Crossrefs

Cf. A116700.

Sequence in context: A334825 A057372 A057442 * A008435 A223083 A302169

Adjacent sequences: A141814 A141815 A141816 * A141818 A141819 A141820

Keyword

easy,nonn,base

Author

Paolo P. Lava and Giorgio Balzarotti, Jul 08 2008

Status

approved