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A238334 Squares that do not contain a shorter substring that is a square. 4
0, 1, 4, 9, 25, 36, 576, 676, 5776, 27556, 33856, 538756, 586756, 665856, 682276, 763876, 767376, 853776, 872356, 2637376, 2775556, 2835856, 5635876, 6885376, 7376656, 22886656, 23755876, 23775376, 26275876, 26687556, 26873856, 32672656, 32878756, 37527876 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Giovanni Resta, Table of n, a(n) for n = 1..10000

Wikipedia, Substring

MATHEMATICA

fQ[n_] := Module[{d = IntegerDigits[n], len, ds, sq}, len = Length[d]; ds = FromDigits /@ Flatten[Table[Partition[d, i, 1], {i, len - 1}], 1]; sq = Select[ds, IntegerQ[Sqrt[#]] &]; sq == {}]; Select[Range[0, 10000]^2, fQ]

CROSSREFS

Cf. A130448.

Sequence in context: A087058 A046659 A063760 * A130448 A046451 A158142

Adjacent sequences:  A238331 A238332 A238333 * A238335 A238336 A238337

KEYWORD

nonn,base

AUTHOR

T. D. Noe, Mar 05 2014

STATUS

approved

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Last modified July 17 21:36 EDT 2019. Contains 325109 sequences. (Running on oeis4.)