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A115923 Numbers k such that k and 3*k, taken together, are pandigital. 5
16794, 17694, 20583, 23058, 30582, 32058 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
16794 and 50382=16794*3 together contain all the 10 digits once.
MATHEMATICA
pdQ[n_]:=Sort[Flatten[Join[{IntegerDigits[n], IntegerDigits[3n]}]]] == Range[0, 9]; Select[Range[10000, 99999], pdQ] (* Harvey P. Dale, Jul 07 2012 *)
PROG
(PARI) {for(n=10234, 49876, #Set(digits(n))==5||next; #Set(digits(n*3))==5 && #Set(concat(digits(n), digits(n*3)))==10 && print1(n", "))} \\ M. F. Hasler, Feb 08 2014
CROSSREFS
Sequence in context: A183844 A034820 A053074 * A243836 A244107 A264183
KEYWORD
nonn,base,fini,full
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved

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Last modified March 28 11:46 EDT 2024. Contains 371241 sequences. (Running on oeis4.)