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 A335907 #10 Jul 01 2020 22:29:27
%S A335907 4,12,72,102,108,180,192,240,348,420,600,822,828,1032,1050,1152,1302,
%T A335907 1320,1428,1488,1608,1722,1872,2088,2112,2550,2592,2688,2712,3000,
%U A335907 3168,3252,3360,3372,3468,3528,3672,3768,4020,4092,4128,4272,4650,4800,4932,5100,5232,5280,5520,5640,5868,5880,6132,6690,6762,6780
%N A335907 Average of those twin prime pairs p, q=p+2, for which A335885(p+1) <= A335885(p-1) and A335885(q-1) <= A335885(q+1).
%C A335907 For such twin prime pairs p, q, A335885(p) = A335885(q) = 1 + A335885((p+q)/2).
%o A335907 (PARI)
%o A335907 A335885(n) = { my(f=factor(n)); sum(k=1,#f~,if(2==f[k,1],0,f[k,2]*(1+min(A335885(f[k,1]-1),A335885(f[k,1]+1))))); };
%o A335907 isA335907(n) = (isprime(n-1)&&isprime(n+1)&&(A335885(n)<=A335885(n-2))&&(A335885(n)<=A335885(n+2)));
%Y A335907 Cf. A335885.
%Y A335907 Subsequence of A014574. Cf. also A335908.
%K A335907 nonn
%O A335907 1,1
%A A335907 _Antti Karttunen_, Jul 01 2020