|
| |
|
|
A078241
|
|
Smallest multiple of n using only digits 0 and 2.
|
|
21
|
|
|
|
2, 2, 222, 20, 20, 222, 2002, 200, 222222222, 20, 22, 2220, 2002, 2002, 2220, 2000, 22202, 222222222, 22002, 20, 20202, 22, 220202, 22200, 200, 2002, 2202222222, 20020, 2202202, 2220, 222022, 20000, 222222, 22202, 20020, 2222222220, 222
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
a(n) = min{A169965(k): k > 1 and A169965(k) mod n = 0}. [Reinhard Zumkeller, Jan 10 2012]
|
|
|
LINKS
|
_Reinhard Zumkeller_, Table of n, a(n) for n = 1..998
|
|
|
FORMULA
|
a(n) < 10^n / (0.45 n). [Charles R Greathouse IV, Jan 09 2012]
a(n) <= A216812(n) <= 2(10^n-1)/9. - N. J. A. Sloane, Sep 18 2012
|
|
|
PROG
|
(Haskell)
a078241 n = head [x | x <- tail a169965_list, mod x n == 0]
-- Reinhard Zumkeller, Jan 10 2012
|
|
|
CROSSREFS
|
Cf. A004290, A078242-A078248, A079339, A096681-A096688, A181060, A181061, A216481, A216812.
Sequence in context: A003110 A100956 A216481 * A216812 A068103 A119512
Adjacent sequences: A078238 A078239 A078240 * A078242 A078243 A078244
|
|
|
KEYWORD
|
base,nonn,changed
|
|
|
AUTHOR
|
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 23 2002
|
|
|
EXTENSIONS
|
More terms from Ray Chandler, Jul 12 2004
|
|
|
STATUS
|
approved
|
| |
|
|
