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A141239 Sequence of k such that starting with P(0)=29 then k(n)*P(n-1)*(k(n)*P(n-1)-1)-1 is the least prime = P(n). 4
1, 2, 16, 3, 9, 11, 136, 219, 51, 1428 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

1*29*(1*29-1)-1=811 prime so k(1)=1 P(1)=811

PROG

(PARI) P=29; for(i=1, 20, k=0; while(!ispseudoprime(t=k++*P*(k*P-1)-1), ); P=t; print1(k", ")) \\ Charles R Greathouse IV, Dec 27 2011

CROSSREFS

Cf. A141233-A141240.

Sequence in context: A145684 A254637 A197226 * A303990 A095860 A070654

Adjacent sequences:  A141236 A141237 A141238 * A141240 A141241 A141242

KEYWORD

nonn

AUTHOR

Pierre CAMI, Jun 16 2008

EXTENSIONS

a(10) from Charles R Greathouse IV, Dec 27 2011

STATUS

approved

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Last modified May 13 19:36 EDT 2021. Contains 343868 sequences. (Running on oeis4.)