login
a(n) = [ (2nd elementary symmetric function of P(n))/(first elementary symmetric function of P(n)) ], where P(n) = {first n+1 primes}.
0

%I #6 Sep 23 2016 08:22:23

%S 1,3,5,10,15,23,31,42,55,69,86,105,125,148,173,200,230,262,296,331,

%T 369,409,452,498,547,597,649,702,757,819,883,950,1017,1090,1164,1240,

%U 1320,1402,1487,1574,1663,1757,1851,1948

%N a(n) = [ (2nd elementary symmetric function of P(n))/(first elementary symmetric function of P(n)) ], where P(n) = {first n+1 primes}.

%Y Cf. A024447, A007504.

%K nonn

%O 1,2

%A _Clark Kimberling_