OFFSET
1,2
COMMENTS
No other terms below 32000.
LINKS
David Broadhurst, The House That Jack Built
David Broadhurst and others, The house that Jack built, digest of 69 messages in primenumbers Yahoo group, Mar 22 - May 10, 2009.
PROG
(PARI) { y = Mod(x, x^4-30*x^2+1); q8 = Mod(-1/2*x^3 + 31/2*x, x^4-30*x^2+1); forstep(n=1, 10^4, 2, if( ispseudoprime( polcoeff(lift((y^n+y^(-n))/q8), 0) + 1 ), print(n); ); ); } \\ Max Alekseyev, Dec 09 2011
CROSSREFS
KEYWORD
more,nonn
AUTHOR
Cino Hilliard, Mar 26 2009
EXTENSIONS
a(11)-a(13) from Max Alekseyev, Dec 09 2011
STATUS
approved