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%I #9 May 13 2023 19:13:01
%S 1,2,30,46,374,2146,5945,14855,24702
%N First occurrence of A280379(k) = n.
%C n < log(a(n)) for a(n) < 1.1*10^6.
%e For prime(30)=113, A056171(113) = 14, A104272(12)=107 and A104272(13) = 127, so 14 - 12 = 2 (First occurrence).
%o (PARI) \\RR[x] is a list of Ramanujan primes, A104272.
%o {plimit=1.1*10^6;i=n=s=0;
%o forprime(p=2,plimit,
%o s++;
%o if(p==RR[n+1],n++);
%o if(i==s-primepi(floor(p/2))-n,print(i," ",s);i++)
%o )
%o }
%Y Cf. A056171, A104272.
%K nonn
%O 0,2
%A _John W. Nicholson_, Jan 09 2017
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