login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A185366 First n-digit square in the digits of e. 0
1, 81, 676, 8281, 72900, 819025, 21609, 3644281, 59845696, 796707076 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Squares are allowed to have prefix 0 (see example).

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

a(7) = 21609 is the first square that occurs in the sequence of the 7 decimal digits ...0021609...with the index 830 in A001113.

MAPLE

Digits := 10000: p0 := evalf(exp(1)):for d from 1 to 20 do: id:=0:for i from

  0 to 50000 while(id=0) do :q0:=trunc(p0*10^(i+d-1)): x:= irem(q0, 10^d): if sqrt(x)=floor(sqrt(x))  then printf(`%d, `, x):id:=1: else fi:od:od:

CROSSREFS

Cf. A001113.

Sequence in context: A187433 A269055 A236876 * A232026 A133549 A235946

Adjacent sequences:  A185363 A185364 A185365 * A185367 A185368 A185369

KEYWORD

nonn,base

AUTHOR

Michel Lagneau, Feb 20 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 17 12:55 EDT 2021. Contains 343971 sequences. (Running on oeis4.)