A045791 Squares with initial digit '7'.

729, 784, 7056, 7225, 7396, 7569, 7744, 7921, 70225, 70756, 71289, 71824, 72361, 72900, 73441, 73984, 74529, 75076, 75625, 76176, 76729, 77284, 77841, 78400, 78961, 79524, 700569, 702244, 703921, 705600, 707281, 708964, 710649, 712336

Offset

1,1

Links

Table of n, a(n) for n=1..34.

Formula

a(n) = A045861(n)^2. - Michel Marcus, Sep 04 2021

Mathematica

Flatten[Table[Range[Ceiling[Sqrt[7 10^n]], Floor[Sqrt[8 10^n]]]^2, {n, 5}]] (* Harvey P. Dale, Jun 15 2011 *)

Crossrefs

Cf. A045861.

Cf. A045784, A045785, A045786, A045787, A045788, A045789, A045792, A045793.

Sequence in context: A278609 A278894 A214106 * A088035 A054259 A202455

Adjacent sequences: A045788 A045789 A045790 * A045792 A045793 A045794

Keyword

nonn,base

Author

Jeff Burch

Status

approved