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Search: id:A115535
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A115535 Numbers n such that the concatenation of n with 4*n gives a square. +0
1
25721, 28836, 32129, 35600, 39249, 43076, 47081, 51264, 55625, 60164, 64881, 69776, 74849, 80100, 85529, 91136, 96921, 102884, 109025, 115344, 121841, 128516, 135369, 142400, 149609, 156996, 164561, 172304, 180225, 188324 (list; graph; listen)
OFFSET

1,1
EXAMPLE

25721_102884 = 160378^2.

CROSSREFS

Cf. A102567, A106497, A115527 - A115556.

Sequence in context: A124997 A031837 A023350 this_sequence A109252 A003927 A115494

Adjacent sequences: A115532 A115533 A115534 this_sequence A115536 A115537 A115538

KEYWORD

nonn,base

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 25 2006

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Last modified November 18 20:14 EST 2008. Contains 147244 sequences.

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