login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A090253 a(1) = 2, a(2) = 3, a(n) = least prime greater than the product of two previous terms. 0
2, 3, 7, 23, 163, 3761, 613049, 2305677323, 1413493177187867, 3259059164857285852640107, 4606657893577361399569662402327877981883, 15013370627425459052324121468319040208855976676229499210665181583 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

MAPLE

a:=proc(n) if n=1 then 2 elif n=2 then 3 else nextprime(a(n-1)*a(n-2)) fi end: seq(a(n), n=1..13); (Deutsch)

CROSSREFS

Sequence in context: A205827 A098544 A176706 * A001064 A108176 A111235

Adjacent sequences:  A090250 A090251 A090252 * A090254 A090255 A090256

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Nov 27 2003

EXTENSIONS

More terms from Emeric Deutsch, Feb 26 2005

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified May 22 23:20 EDT 2013. Contains 225585 sequences.