A115929 - OEIS

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A115929

Numbers k such that k and 4*k, taken together, are zeroless pandigital, that is, use all the digits 1-9 exactly once.

3942, 4392, 5796, 7956 (list; graph; refs; listen; history; text; internal format)

	OFFSET	`1,1`
	LINKS	`Table of n, a(n) for n=1..4.`
	EXAMPLE	`3942 and 3942*4=15768 use once all the digits from 1 to 9.`
	MATHEMATICA	`Select[Range[1000, 9999], Union[IntegerDigits[#], IntegerDigits[4 #]] == {1, 2, 3, 4, 5, 6, 7, 8, 9} &] (* Tanya Khovanova, Jul 05 2021 *)`
	CROSSREFS	`Cf. A054383, A064160, A115927, A115930, A115931, A115932.` `Sequence in context: A252455 A233688 A162859 * A346135 A070185 A059354` `Adjacent sequences: A115926 A115927 A115928 * A115930 A115931 A115932`
	KEYWORD	`nonn,base,fini,full`
	AUTHOR	`Giovanni Resta, Feb 06 2006`
	STATUS	`approved`

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Last modified December 8 08:02 EST 2023. Contains 367662 sequences. (Running on oeis4.)