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A141236
Sequence of k such that starting with P(0)=17 then k(n)*P(n-1)*(k(n)*P(n-1)-1)-1 is the least prime = P(n).
3
1, 2, 22, 9, 12, 140, 76, 1376, 49, 1030
OFFSET
1,2
EXAMPLE
1*17*(1*17-1)-1=271 prime so k(1)=1 P(1)=271
PROG
(PARI) P=17; 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
KEYWORD
nonn
AUTHOR
Pierre CAMI, Jun 16 2008
EXTENSIONS
a(9)-a(10) from Charles R Greathouse IV, Dec 27 2011
STATUS
approved