NEW SEQUENCE: Semiprime gaps without primes

[zak seidov]

Neil, Jack, seqfans,
any comments?
thanks, zak

%I A000001
%S A000001
9,49,62,403,341,843,6722,3473,2869,14059,18467,26603,166126,41779,74491,192061,463161,226489,344119,517421,943606,2171131,4577519,584213,2560177,4356633,8367139,11174753,13191293,7319797,27841051,10644122,13683034,29492893,47735342,26837363
%N A000001 a(n)=smallest semiprime s1 such that
between s1 and s2=nextsemiprime(s1)=s1+n there is no
prime.
%e A000001 a(1)=9 because between 9 and 10 there is no
prime,
a(2)=49 because between 49 and 51 there is no prime, 
a(3)=62 because between 62 and 65 there is no prime. 
%O A000001 1
%K A000001 ,nonn,
%A A000001 Jack Brennen (jb at brennen.net) and Zak
Seidov (zakseidov at yahoo.com), Dec 23 2007


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