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A152588
15^(2^n) + 2.
1
17, 227, 50627, 2562890627, 6568408355712890627, 43143988327398919500410556793212890627, 1861403728794734215467410604755702820123364205073812627233564853668212890627
OFFSET
0,1
FORMULA
a(n) = A175138(n+3)+2. - R. J. Mathar, Sep 10 2016
PROG
(PARI) g(a, n) = if(a%2, b=2, b=1); for(x=0, n, y=a^(2^x)+b; print1(y", "))
CROSSREFS
Sequence in context: A078946 A164600 A187636 * A152589 A163853 A142547
KEYWORD
nonn
AUTHOR
Cino Hilliard, Dec 08 2008
STATUS
approved