id:A050741 - OEIS Search Results

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Numbers n such that n^2 does not contain a pair of consecutive identical digits.

+0
4

0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 14, 16, 17, 18, 19, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 36, 37, 39, 41, 42, 43, 44, 45, 48, 49, 51, 52, 53, 54, 55, 56, 57, 59, 61, 63, 64, 66, 68, 69, 71, 72, 73, 74, 75, 77, 78, 79, 81, 82, 84, 86, 87, 89, 91, 92, 93, 95, 96, 97 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`Zak Seidov, Table of n, a(n) for n = 1..1057, a(n)<2000.`
	EXAMPLE	`10 is absent because 10^2=100 with repeating 0,` `12 is absent because 12^2=144 with repeating 4,` `21 is absent because 21^2=441 with repeating 4.`
	CROSSREFS	`Cf. A043096, A050749, A135463, A134962.` `Sequence in context: A038365 A031185 A129562 this_sequence A133810 A032959 A061383` `Adjacent sequences: A050738 A050739 A050740 this_sequence A050742 A050743 A050744`
	KEYWORD	`nonn,base`
	AUTHOR	`Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1999.`
	EXTENSIONS	`Edited by N. J. A. Sloane (njas(AT)research.att.com), Mar 16 2008`

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

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