A100466 - OEIS

%I #9 Jul 11 2015 10:18:22

%S 14,21,34,46,62,69,74,77,93,115,122,129,141,158,161,177,187,194,206,

%T 215,221,289,291,302,326,329,334,346,361,382,391,393,398,403,451,471,

%U 481,502,535,543,581,583,629,635,655,674,698,706,713,723,734,802,813

%N Semiprimes of special form: sum of an integer k and the k-th semiprime.

%C This is the semiprime analog of A061068.

%H Eric Weisstein, World of Mathematics, <a href="http://mathworld.wolfram.com/Semiprime.html">Semiprime.</a>

%F a(n) = A100915(n) + A100916(n) = A100915(n) + A001358(A100915(n)).

%e a(3) = 34 because 34 is the third semiprime appearing in A100493.

%Y Cf. A001358, A061068, A100493, A100467, A100915, A100916.

%K easy,nonn

%O 1,1

%A _Jonathan Vos Post_, Nov 20 2004

%E Edited, corrected and extended by _Ray Chandler_, Nov 26 2004