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

Author

Chai Wah Wu, Nov 14 2014

Keywords

• nonn
• base

Examples

			9150625 and 50625 are both squares.
		

Links

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

Crossrefs

Cf. A225885.