|
Search: id:A133282
|
|
|
| A133282 |
|
Numbers n such that googol - n is an upper twin prime. |
|
+0
2
|
|
| 35217, 85077, 253407, 326271, 343131, 349527, 356667, 408609, 471729, 517707, 582069, 613299, 614997, 661947, 667827, 793359, 810099, 852579, 876687, 960897
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
FORMULA
|
Googol = 10^100.
|
|
PROGRAM
|
(PARI) googol2(n) = { local(x, a, j); x=10^100; forstep(j=1, 1000000, 2, a=x-j; if(ispseudoprime(a)&ispseudoprime(a-2), print1(j", "); ); ) }
|
|
CROSSREFS
|
Sequence in context: A031835 A085545 A031855 this_sequence A065611 A101252 A133281
Adjacent sequences: A133279 A133280 A133281 this_sequence A133283 A133284 A133285
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
Cino Hilliard (hillcino368(AT)hotmail.com), Oct 13 2007, Feb 06 2008
|
|
|
Search completed in 0.002 seconds
|
