|
Search: id:A087749
|
|
|
| A087749 |
|
Primes n such that 6^n-5^n is composite. |
|
+0
1
|
|
| 3, 7, 17, 19, 29, 31, 37, 41, 43, 47, 53, 59, 67, 71, 73, 79, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 281
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
PROGRAM
|
(PARI) apmb(a, b, n) = { forprime(x=2, n, y=a^x-b^x; if(!ispseudoprime(y), print1(x", "); ) ) }
|
|
CROSSREFS
|
Sequence in context: A143817 A000963 A133593 this_sequence A140863 A076194 A064699
Adjacent sequences: A087746 A087747 A087748 this_sequence A087750 A087751 A087752
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Cino Hilliard (hillcino368(AT)gmail.com), Oct 26 2003
|
|
EXTENSIONS
|
Corrected by Andrew Plewe (aplewe(AT)sbcglobal.net), Apr 24 2007 (all the terms were wrong)
Checked by Ray Chandler, Apr 25 2007
|
|
|
Search completed in 0.002 seconds
|
