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A130448 Squares whose decimal representation contains no substring which is a square. +0
2
1, 4, 9, 25, 36, 576, 676, 7056, 80656, 665856, 2027776, 2802276, 22282727076, 77770707876, 78807087076, 7888885568656, 8782782707776, 72822772707876, 555006880085056, 782280288087076, 827702888070276, 888288787822276 (list; graph; listen)
OFFSET

1,2

COMMENT

The digits in the substring do not have to be adjacemt.

Is this sequence finite and if so what is the last term?

EXAMPLE

576 is in the list because none of the substrings 5, 7, 6, 57, 76 or 56 is a square number.

CROSSREFS

Cf. A131599.

Sequence in context: A087058 A046659 A063760 this_sequence A046451 A158142 A158143

Adjacent sequences: A130445 A130446 A130447 this_sequence A130449 A130450 A130451

KEYWORD

base,nonn

AUTHOR

Martin Raab (raab-martin(AT)gmx.de), Aug 07 2007

EXTENSIONS

Edited by N. J. A. Sloane (njas(AT)research.att.com), Sep 14 2007

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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