|
Search: id:A064392
|
|
| |
|
| 1, 2, 5, 10, 13, 26, 37, 65, 74, 130, 185, 370, 463, 481, 926, 962, 2315, 2405, 4630, 4810, 6019, 12038, 17131, 30095, 34262, 60190, 85655, 171310, 222703
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
PROGRAM
|
(PARI) for(n=1, 10^6, x=sum(k=0, n, (-1)^k*k!); if(Mod(x, n)==0 && issquarefree(n), print(n)))
|
|
CROSSREFS
|
Sequence in context: A064233 A051952 A103188 this_sequence A018296 A033316 A099194
Adjacent sequences: A064389 A064390 A064391 this_sequence A064393 A064394 A064395
|
|
KEYWORD
|
more,nonn
|
|
AUTHOR
|
Jason Earls (zevi_35711(AT)yahoo.com), Sep 28 2001
|
|
EXTENSIONS
|
a(17)-a(29) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Nov 30 2008
|
|
|
Search completed in 0.005 seconds
|
