id:A018834 - OEIS Search Results

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Numbers n such that decimal expansion of n^2 contains n as a substring.

+0
4

0, 1, 5, 6, 10, 25, 50, 60, 76, 100, 250, 376, 500, 600, 625, 760, 1000, 2500, 3760, 3792, 5000, 6000, 6250, 7600, 9376, 10000, 14651, 25000, 37600, 50000, 60000, 62500, 76000, 90625, 93760, 100000, 109376, 250000, 376000, 495475, 500000, 505025 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`David W. Wilson, Table of n, a(n) for n = 1..126`
	EXAMPLE	`25^2 = 625 which contains 25.` `3792^2 = 14_3792_64, 14651^2 = 2_14651_801.`
	CROSSREFS	`Cf. A029942, A003226.` `Sequence in context: A035282 A075156 A075904 this_sequence A029943 A063630 A119102` `Adjacent sequences: A018831 A018832 A018833 this_sequence A018835 A018836 A018837`
	KEYWORD	`nonn,base`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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