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 A153410 #8 Aug 01 2020 10:31:22 %S A153410 3,5,23,67,233,503,683,1013,1759,2099,2797,3169,10663,12391,12899, %T A153410 13487,15149,18583,20563,21881,25373,26237,26681,33613,36787,36943, %U A153410 41411,41443,43573,61547,63337,63841,68909,71999,75721,76367,76481,86677 %N A153410 Middle of 3 consecutive prime numbers, p1, p2, p3, such that p1*p2*p3*d1*d2 = average of twin prime pairs; d1 (delta) = p2 - p1, d2 (delta) = p3 - p2. %H A153410 Amiram Eldar, <a href="/A153410/b153410.txt">Table of n, a(n) for n = 1..10000</a> %e A153410 2*3*5*1*2 = 60 and 60 +- 1 are primes. %e A153410 3*5*7*2*2 = 420 and 420 +- 1 are primes. %e A153410 19*23*29*4*6 = 304152 and 304152 +- 1 are primes. %t A153410 lst={};Do[p1=Prime[n];p2=Prime[n+1];p3=Prime[n+2];d1=p2-p1;d2=p3-p2;a=p1*p2*p3*d1*d2;If[PrimeQ[a-1]&&PrimeQ[a+1],AppendTo[lst,p2]],{n,8!}];lst %t A153410 cpnQ[{a_,b_,c_}]:=Module[{x=Times@@Join[{a,b,c},Differences[ {a,b,c}]]}, AllTrue[ x+{1,-1},PrimeQ]]; Select[Partition[ Prime[Range[ 10000]],3,1], cpnQ][[All,2]] (* Requires Mathematica version 10 or later *) (* _Harvey P. Dale_, Aug 01 2020 *) %Y A153410 Cf. A099349, A153374, A153375, A153376, A153377, A153378, A153379, A153406, A153407, A153408, A153409. %K A153410 nonn %O A153410 1,1 %A A153410 _Vladimir Joseph Stephan Orlovsky_, Dec 25 2008