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A095966 Numbers n such that n * (largest digit of n) is a square. 0
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 18, 45, 49, 100, 125, 128, 144, 169, 175, 196, 200, 216, 245, 288, 289, 300, 324, 338, 400, 405, 441, 500, 529, 567, 578, 600, 648, 700, 729, 800, 882, 900, 961, 1024, 1058, 1089, 1125, 1296, 1323, 1369, 1372, 1444, 1445, 1458 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..54.

EXAMPLE

a(10)=18 because 18*8 = 144 = 12^2.

MATHEMATICA

Select[Range[0, 1500], IntegerQ[Sqrt[# Max[IntegerDigits[#]]]]&] (* Harvey P. Dale, Aug 30 2016 *)

CROSSREFS

Cf. A054055.

Sequence in context: A273736 A048409 A066565 * A180084 A092596 A349732

Adjacent sequences:  A095963 A095964 A095965 * A095967 A095968 A095969

KEYWORD

base,easy,nonn

AUTHOR

Jason Earls, Jul 15 2004

STATUS

approved

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Last modified January 28 18:56 EST 2022. Contains 350657 sequences. (Running on oeis4.)