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A030487 When squared gives number composed of digits {2,5,7}. 1
5, 15, 85, 165, 235, 1665, 15085, 16665, 166665, 268835, 1666665, 5076665, 16666665, 52683515, 165898335, 166666665, 278433515, 507668915, 850032485, 1508559835, 1666666665, 15085017485, 16666666665, 166666666665 (list; graph; refs; listen; history; internal format)
OFFSET

0,1

LINKS

P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences

Author?, Source(txt)

CROSSREFS

Cf. A030485.

Sequence in context: A064678 A088935 A183937 * A165470 A165625 A058820

Adjacent sequences:  A030484 A030485 A030486 * A030488 A030489 A030490

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com)

EXTENSIONS

Extended and corrected by author 03/2000.

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005

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Last modified February 14 19:37 EST 2012. Contains 205663 sequences.