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 A134924 #10 Apr 12 2025 11:20:57
%S A134924 1,3,22,24,36,38,46,48,52,54,66,68,78,80,82,84,88,90,96,98,112,114,
%T A134924 126,128,130,132,156,158,162,164,166,168,172,174,210,212,222,224,232,
%U A134924 234,250,252,256,258,262,264,276,278,292,294,306,308
%N A134924 Nearest-neighbors of isolated primes.
%H A134924 Martin Burtscher, Igor Szczyrba, and Rafał Szczyrba, <a href="https://www.emis.de/journals/JIS/VOL18/Szczyrba/sz3.html">Analytic Representations of the n-anacci Constants and Generalizations Thereof</a>, Journal of Integer Sequences, Vol. 18 (2015), Article 15.4.5.
%t A134924 ip=Select[Prime[Range[65]],NoneTrue[{#-2,#+2},PrimeQ]&];Union[Flatten[Table[n+{1, -1}, {n, ip}]]] (* _James C. McMahon_, Apr 12 2025 *)
%Y A134924 Cf. A007510, A045718, A134926, A134930.
%K A134924 easy,nonn
%O A134924 1,2
%A A134924 _Omar E. Pol_, Nov 27 2007