OFFSET
1,1
COMMENTS
These are the Sierpiński numbers (A076336) with covering set {3, 5, 7, 13, 17, 97, 257}. - David W. Wilson, Jul 18 2014
For n > 96, a(n) = a(n-96) + 1156954890, the first 96 values are in the table.
LINKS
Pierre CAMI, Table of n, a(n) for n = 1..96
FORMULA
For n > 96, a(n) = a(n-96) + 1156954890.
PROG
(PARI) is(n)=my(G=578477445, t=Mod(n, G)); for(k=1, 768, t*=2; if(gcd(t+1, G)==1, return(0))); n%2 \\ Charles R Greathouse IV, Jul 18 2014
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Pierre CAMI, Jun 30 2014
STATUS
approved