id:A018831 - OEIS Search Results

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Numbers n such that n is a substring of its square in base 7 (written in base 10).

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0, 1, 7, 30, 49, 285, 343, 911, 1900, 2208, 2401, 13962, 16807, 59763, 64098, 69128, 85880, 97734, 117649, 195032, 418341, 754422, 823543, 2162126, 2629229, 2790841, 3488518, 3842400, 4960401, 5764801, 7923812, 8559490, 15134882, 19765943 (list; graph; listen)

	OFFSET	`1,3`
	CROSSREFS	`Sequence in context: A157422 A061644 A053621 this_sequence A063128 A063148 A116283` `Adjacent sequences: A018828 A018829 A018830 this_sequence A018832 A018833 A018834`
	KEYWORD	`nonn,base`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

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