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A158917
Emirps using each of the digits 1, 3, 7, 9 at least once, but no others.
0
3719, 3917, 7193, 9173, 17393, 17939, 19793, 19973, 31799, 37199, 37991, 39371, 39791, 71399, 79319, 91397, 93971, 99173, 99317, 99713, 113797, 117193, 119773, 131797, 133379, 137993, 139397, 171937, 177319, 179173, 179939, 191137, 191173, 193337, 193799, 193937, 199337, 199739
OFFSET
1,1
FORMULA
A006567 INTERSECT A108386.
CROSSREFS
Sequence in context: A263035 A252161 A180396 * A252421 A296908 A237736
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, Mar 30 2009
EXTENSIONS
137993, 171937, 179939 etc. inserted by R. J. Mathar, Apr 04 2009
STATUS
approved