OFFSET
1,1
LINKS
Amiram Eldar, Table of n, a(n) for n = 1..4000
FORMULA
A085496(a(n)) = 0.
EXAMPLE
p=13, divisors of p+1=13+1=14 that are not greater 13: {1,2,7} with sums of distinct summands 1,2,3=2+1,7,8=7+1,9=7+2 and 10=7+2+1, therefore 13 is a term.
MATHEMATICA
seqQ[p_] := Module[{d = Most[Divisors[p+1]]}, SeriesCoefficient[Series[Product[1 + x^d[[i]], {i, Length[d]}], {x, 0, p}], p] == 0]; Select[Range[700], PrimeQ[#] && seqQ[#] &] (* Amiram Eldar, Jan 13 2020 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jul 03 2003
EXTENSIONS
More terms from Amiram Eldar, Jan 13 2020
STATUS
approved