A245371 Square numbers that remain square when their 2 most-significant (or leftmost) digits in base 10 are removed.

16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 289, 324, 361, 400, 441, 484, 529, 729, 784, 841, 900, 961, 1225, 1600, 1681, 1764, 1849, 1936, 2025, 2116, 2209, 2304, 2401, 2500, 2601, 2704, 2809, 2916, 3025, 3136, 3249, 3364, 3481, 3600, 4225, 4900, 5625, 6400

Offset

1,1

Links

Chai Wah Wu, Table of n, a(n) for n = 1..4137

Example

9150625 and 50625 are both squares.

Crossrefs

Cf. A225885.

Sequence in context: A176512 A001033 A100647 * A235717 A368049 A319388

Adjacent sequences: A245368 A245369 A245370 * A245372 A245373 A245374

Keyword

nonn,base

Author

Chai Wah Wu, Nov 14 2014

Status

approved