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A115923
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Numbers k such that k and 3*k, taken together, are pandigital.
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5
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OFFSET
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1,1
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LINKS
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Table of n, a(n) for n=1..6.
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EXAMPLE
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16794 and 50382=16794*3 together contain all the 10 digits once.
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MATHEMATICA
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pdQ[n_]:=Sort[Flatten[Join[{IntegerDigits[n], IntegerDigits[3n]}]]] == Range[0, 9]; Select[Range[10000, 99999], pdQ] (* Harvey P. Dale, Jul 07 2012 *)
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PROG
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(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
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CROSSREFS
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Cf. A054383, A115922, A115924, A115925, A114126, A115927.
Sequence in context: A183844 A034820 A053074 * A243836 A244107 A264183
Adjacent sequences: A115920 A115921 A115922 * A115924 A115925 A115926
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KEYWORD
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nonn,base,fini,full
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AUTHOR
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Giovanni Resta, Feb 06 2006
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STATUS
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approved
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