OFFSET
1,1
COMMENTS
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..10000
William Adams and Daniel Shanks, Strong primality tests that are not sufficient, Math. Comp. 39 (1982), 255-300.
MATHEMATICA
a={}; b=-Drop[CoefficientList[Series[(2x+3)/(x^3-x-1), {x, 0, 10^4}], x] , 1];
Do[If[!PrimeQ[k]&&Divisible[b[[k]]+1, k], AppendTo[a, k]], {k, 2, Length[b]}]; a
CROSSREFS
KEYWORD
nonn
AUTHOR
Amiram Eldar, Oct 22 2017
STATUS
approved