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 A254712 #9 Nov 11 2021 18:09:36
%S A254712 69,82,166,417,451,545,614,679,717,731,763,779,799,813,851,1047,1057,
%T A254712 1077,1101,1119,1138,1262,1293,1346,1371,1603,1639,1651,1678,1739,
%U A254712 1761,1817,1897,1959,1983,2049,2078,2177,2263,2446,2498,2533,2661,2705,2734,2746,2762
%N A254712 Semiprimes that are the sum of five successive semiprimes.
%H A254712 Zak Seidov, <a href="/A254712/b254712.txt">Table of n, a(n) for n = 1..10000</a>
%e A254712 69=A001358(24)=A001358(3)+...+A001358(7)= 9 + 10 + 14 + 15 + 21,
%e A254712 82=A001358(27)=A001358(4)+...+A001358(8)= 10 + 14 + 15 + 21 + 22.
%t A254712 Module[{sps=Select[Range[750],PrimeOmega[#]==2&]},Select[Total/@ Partition[ sps,5,1],PrimeOmega[ #] ==2&]] (* _Harvey P. Dale_, Nov 11 2021 *)
%Y A254712 Cf. A001358, A092192, A131610, A158339.
%K A254712 nonn
%O A254712 1,1
%A A254712 _Zak Seidov_, Feb 06 2015