A072448 Squares of the terms of the decimal expansion of Pi.

9, 1, 16, 1, 25, 81, 4, 36, 25, 9, 25, 64, 81, 49, 81, 9, 4, 9, 64, 16, 36, 4, 36, 16, 9, 9, 64, 9, 4, 49, 81, 25, 0, 4, 64, 64, 16, 1, 81, 49, 1, 36, 81, 9, 81, 81, 9, 49, 25, 1, 0, 25, 64, 4, 0, 81, 49, 16, 81, 16, 16, 25, 81, 4, 9, 0, 49, 64, 1, 36, 16, 0, 36, 4, 64, 36, 4, 0, 64, 81

Offset

1,1

Links

Table of n, a(n) for n=1..80.

Formula

a(n) = A000796(n)^2.

Example

a(1) = 9 = 3*3.

Mathematica

First[RealDigits[Pi, 10, 80]]^2

Crossrefs

Cf. A000796.

Sequence in context: A062357 A348974 A061215 * A145966 A349143 A014721

Adjacent sequences: A072445 A072446 A072447 * A072449 A072450 A072451

Keyword

easy,nonn,base

Author

Jeremy Gardiner, Aug 01 2002

Extensions

Edited by Robert G. Wilson v, Aug 02 2002

Status

approved