|
|
A199985
|
|
Numbers with digital product = 5.
|
|
3
|
|
|
5, 15, 51, 115, 151, 511, 1115, 1151, 1511, 5111, 11115, 11151, 11511, 15111, 51111, 111115, 111151, 111511, 115111, 151111, 511111, 1111115, 1111151, 1111511, 1115111, 1151111, 1511111, 5111111, 11111115, 11111151, 11111511, 11115111, 11151111, 11511111
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
MAPLE
|
f:= proc(d) local b, i;
b:= (10^d-1)/9;
seq(b+4*10^i, i=0..d-1);
end proc:
seq(f(d), d=1..9);
|
|
MATHEMATICA
|
Sort[FromDigits/@Flatten[Table[Permutations[PadRight[{5}, n, 1]], {n, 9}], 1]] (* Harvey P. Dale, Sep 03 2016 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,base
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|