The OEIS is supported by the many generous donors to the OEIS Foundation.

 Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 60th year, we have over 367,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”). Other ways to Give
 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A115929 Numbers k such that k and 4*k, taken together, are zeroless pandigital, that is, use all the digits 1-9 exactly once. 5
 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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

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