A045787 Squares with initial digit '4'.

4, 49, 400, 441, 484, 4096, 4225, 4356, 4489, 4624, 4761, 4900, 40000, 40401, 40804, 41209, 41616, 42025, 42436, 42849, 43264, 43681, 44100, 44521, 44944, 45369, 45796, 46225, 46656, 47089, 47524, 47961, 48400, 48841, 49284, 49729, 400689

Offset

1,1

Links

Table of n, a(n) for n=1..37.

Formula

a(n) = A045858(n)^2. - Michel Marcus, Sep 04 2021

Mathematica

Flatten[Table[Range[Ceiling[Sqrt[4 10^n]], Floor[Sqrt[5 10^n]]]^2, {n, 5}]] (* Harvey P. Dale, Jun 15 2011 *)

Crossrefs

Cf. A045858.

Cf. A045784, A045785, A045786, A045788, A045789, A045791, A045792, A045793.

Sequence in context: A290263 A224538 A064751 * A067474 A053769 A355481

Adjacent sequences: A045784 A045785 A045786 * A045788 A045789 A045790

Keyword

nonn,base

Author

Jeff Burch

Status

approved