id:A018885 - OEIS Search Results

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Squares using only two distinct digits.

+0
4

1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 225, 400, 441, 484, 676, 900, 1444, 7744, 10000, 11881, 29929, 40000, 44944, 55225, 69696, 90000, 1000000, 4000000, 9000000, 9696996, 100000000, 400000000, 900000000, 6661661161, 10000000000 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`Alexandru Gica and Laurentiu Panaitopol, On Oblath's Problem, J. Integer Seqs., Vol. 6, 2003.` `Eric Weisstein's World of Mathematics, See also`
	CROSSREFS	`Cf. A016069, A016070, A018884.` `Sequence in context: A000290 A162395 A144913 this_sequence A025741 A030476 A077355` `Adjacent sequences: A018882 A018883 A018884 this_sequence A018886 A018887 A018888`
	KEYWORD	`nonn,base`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

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