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A115932
Numbers k such that k and 8*k, taken together, are zeroless pandigital.
5
3187, 4589, 4591, 4689, 4691, 4769, 5237, 5371, 5789, 5791, 5839, 5892, 5916, 5921, 6479, 6741, 6789, 6791, 6839, 7123, 7312, 7364, 7416, 7421, 7894, 7941, 8174, 8179, 8394, 8419, 8439, 8932, 8942, 8953, 8954, 9156, 9158, 9182, 9316
OFFSET
1,1
COMMENTS
There are 46 such numbers, the largest being 9541.
LINKS
Giovanni Resta, Table of n, a(n) for n = 1..46 (full sequence)
EXAMPLE
3187 and 3187*8=25496 use once all the digits from 1 to 9.
MATHEMATICA
With[{c=Range[9]}, Select[Range[10000], Sort[Join[IntegerDigits[# ], IntegerDigits[8 #]]]==c&]] (* Harvey P. Dale, Jul 11 2011 *)
CROSSREFS
KEYWORD
nonn,base,fini,full
AUTHOR
Giovanni Resta, Feb 06 2006
STATUS
approved