|
| |
| |
|
|
|
5, 7, 43, 769, 1123, 52631, 1428571, 2127659, 14925373, 769230769, 5882352941, 6369426751, 588235294117, 319488817891, 9345794392523, 24449877750611, 662251655629139, 1293661060802069, 67114093959731543, 244498777506112469
(list; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,1
|
|
|
COMMENTS
| Conjecture: No term is zero.
|
|
|
PROG
| (PARI) A090520(n)={ local(p, tenn) ; p=2 ; tenn=10^n ; while(tenn/p>=2, if( isprime(floor(tenn/p)), return(floor(tenn/p)) ) ; p=nextprime(p+1) ; ) ; return(0) ; } { for(n=1, 40, print1(A090520(n), ", ") ; ) } - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 19 2006
|
|
|
CROSSREFS
| Cf. A090517, A090518, A090519.
Sequence in context: A093526 A098512 A064082 * A066219 A174267 A075830
Adjacent sequences: A090517 A090518 A090519 * A090521 A090522 A090523
|
|
|
KEYWORD
| base,nonn
|
|
|
AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Dec 07 2003
|
|
|
EXTENSIONS
| Corrected and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Nov 19 2006
|
| |
|
|
