login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A295018 Squares whose largest digit is 8. 4
81, 484, 784, 841, 1681, 3481, 3844, 5184, 6084, 8100, 8281, 8464, 8836, 10816, 11881, 14884, 15876, 16384, 18225, 22801, 25281, 28224, 28561, 31684, 33856, 36481, 36864, 38025, 38416, 40804, 43681, 48400, 48841, 53824, 58081, 58564, 67081, 68121, 68644, 71824, 77284, 77841, 78400 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

FORMULA

a(n) = A295008(n)^2.

MAPLE

Res:= NULL: count:= 0:

for n from 1 while count < 50 do

  if max(convert(n^2, base, 10))=8 then

    count:= count+1; Res:= Res, n^2;

  fi

od:

Res; # Robert Israel, Jul 21 2019

MATHEMATICA

Select[Range[300]^2, Max[IntegerDigits[#]]==8&] (* Harvey P. Dale, Jul 08 2020 *)

PROG

(PARI) is_A295018(n)=issquare(n)&&n&&vecmax(digits(n))==8 \\ "&&n" avoids an error message for n=0.

CROSSREFS

Cf. A295008 (square roots of the terms),  A277946 - A277948 (same for digit 2..4), A295015 - A295019 (same for digit 5..9).

Cf. A000290 (the squares).

Sequence in context: A250620 A237082 A236651 * A250613 A237077 A236646

Adjacent sequences:  A295015 A295016 A295017 * A295019 A295020 A295021

KEYWORD

nonn,base

AUTHOR

M. F. Hasler, Nov 12 2017

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 15 15:16 EDT 2022. Contains 356146 sequences. (Running on oeis4.)