A158852 - cp's OEIS frontend

A158852 a(n), a(n+1), a(n+2), for n=5,8,11,... are respectively the numbers of representations of the integers 2^k-2, 2^k, 2^k+2, where k=(n+4)/3, by unordered sums of two odd primes not belonging to A158759.

%I A158852 #4 Jun 02 2025 01:27:38
%S A158852 1,0,0,1,0,2,2,0,1,5,0,3,5,0,7,19,0,8,10,0,21,52,0,26,43,0,66,205,0,
%T A158852 79,92,0,217,397,0,279,444,0,683,1651,0,625,1009,0,2135,4831,0,3063,
%U A158852 3682,0,6851
%N A158852 a(n), a(n+1), a(n+2), for n=5,8,11,... are respectively the numbers of representations of the integers 2^k-2, 2^k, 2^k+2, where k=(n+4)/3, by unordered sums of two odd primes not belonging to A158759.
%Y A158852 Cf. A156537 A158759 A156284
%K A158852 nonn,uned
%O A158852 8,6
%A A158852 _Vladimir Shevelev_, Mar 28 2009

cp's OEIS Frontend

A158852 a(n), a(n+1), a(n+2), for n=5,8,11,... are respectively the numbers of representations of the integers 2^k-2, 2^k, 2^k+2, where k=(n+4)/3, by unordered sums of two odd primes not belonging to A158759.