|
|
A057214
|
|
Numbers n such that n | 10^n + 9^n + 8^n + 7^n.
|
|
0
|
|
|
1, 2, 6, 14, 17, 78, 98, 187, 221, 289, 406, 642, 686, 799, 1014, 1067, 1374, 1794, 2567, 2842, 4802, 4913, 8773, 10319, 11026, 11407, 11774, 12246, 13182, 15022, 19894, 23987, 24414, 31093, 33614, 60074, 63869, 64651, 73117, 82418, 83521, 94187
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
LINKS
|
|
|
MATHEMATICA
|
Select[ Range[ 10^7 ], Mod[ PowerMod[ 10, #, # ] + PowerMod[ 9, #, # ] + PowerMod[ 8, #, # ], # ] + PowerMod[ 7, #, # ], # ] == 0 & ]
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
EXTENSIONS
|
|
|
STATUS
|
approved
|
|
|
|