OFFSET
1,1
COMMENTS
Same as Pisot sequences E(3,4), P(3,4), T(3,4). See A008776 for definitions of Pisot sequences.
Non-Fermat-exponents, positive integers n such that there are no solutions in positive integers of the equation a^n+b^n = c^n. - Tanya Khovanova, Jul 09 2011
Sums of twin primes. - Charles R Greathouse IV, Jun 21 2012
LINKS
Tanya Khovanova, Recursive Sequences
Index entries for linear recurrences with constant coefficients, signature (2,-1).
FORMULA
a(n) = n+2.
O.g.f.: x*(3-2*x)/(1-x)^2. a(n)=A009005(n-1), n>2. - R. J. Mathar, May 26 2008
MATHEMATICA
Range[3, 80] (* Harvey P. Dale, Sep 26 2017 *)
PROG
(PARI) a(n)=n+2 \\ Charles R Greathouse IV, Jun 21 2012
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
STATUS
approved