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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A141235 Sequence of k such that starting with P(0)=13 then k(n)*P(n-1)*(k(n)*P(n-1)-1)-1 is the least prime = P(n). 2
3, 2, 15, 8, 11, 70, 271, 429 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

1*13*(1*13-1)-1=155 composite

2*13*(2*13-1)-1=649 composite

3*13*(3*13-1)-1=1481 prime so k(1)=3 P(1)=1481

CROSSREFS

Cf. A141233 A141234 A141236 A141237 A141238 A141239 A141240.

Sequence in context: A142705 A072346 A103236 * A199167 A185973 A051917

Adjacent sequences:  A141232 A141233 A141234 * A141236 A141237 A141238

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierre-cami(AT)bbox.fr), Jun 16 2008

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 February 15 21:16 EST 2012. Contains 205856 sequences.