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A115533 Numbers k such that the concatenation of 3*k with k gives a square. 0
24489796, 55102041, 97959184, 15976331361, 28402366864, 44378698225, 63905325444, 86982248521, 24489795918367346938775510204081632653061224489796 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

73469388_24489796 = 85714286^2.

CROSSREFS

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A203260 A268290 A183791 * A256013 A187315 A083636

Adjacent sequences:  A115530 A115531 A115532 * A115534 A115535 A115536

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jan 25 2006

STATUS

approved

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Last modified August 17 23:13 EDT 2022. Contains 356204 sequences. (Running on oeis4.)