This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A305546 #17 Jul 31 2025 06:59:10
%S A305546 311,67141,125963951,161888809,201388259,559069591,669472577,
%T A305546 917135831,951993491,974896207,1103919101,1128722657,1426246369,
%U A305546 1691534683,1977185207,2455167607,2472527851,2558204381,2583232213,2643398713,2708464399,2815245317,2868455287
%N A305546 Primes that are sums of three, five, seven and eleven consecutive primes.
%C A305546 Intersection of A127340 and A213814.
%C A305546 E.g., a(1) = 311 = A127340(3) = A213814(1).
%H A305546 Harvey P. Dale, <a href="/A305546/b305546.txt">Table of n, a(n) for n = 1..36</a> (All terms from using the first 100 million primes.)
%t A305546 Module[{nn=10^8,prs,p3,p5,p7,p11},prs=Prime[Range[nn]];p3=Select[ Total/@ Partition[ prs,3,1],PrimeQ];p5=Select[Total/@Partition[prs,5,1],PrimeQ];p7=Select[ Total/@Partition[prs,7,1],PrimeQ];p11=Select[Total/@Partition[prs,11,1],PrimeQ];Intersection[ p3,p5,p7,p11]] (* _Harvey P. Dale_, Sep 05 2022 *)
%Y A305546 Cf. A127340, A213814, A222564.
%K A305546 nonn
%O A305546 1,1
%A A305546 _Zak Seidov_, Jun 04 2018
%E A305546 a(7)-a(23) from _Giovanni Resta_, Jun 07 2018