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 A198172 #16 Feb 02 2025 13:18:40
%S A198172 28841971,41971693,82534211,42117067,30664709,31725359,49303819,
%T A198172 75648233,37867831,71201909,48566923,26648213,13393607,25409171,
%U A198172 57595919,21861173,81932611,79962749,24891227,30119491,40656643,30860213,39494639,39522473,98609437,53921717
%N A198172 Primes from merging of 8 successive digits in decimal expansion of Pi forbidding leading zeros.
%C A198172 Leading zeros are not permitted, so each term is 8 digits in length.
%H A198172 Vincenzo Librandi, <a href="/A198172/b198172.txt">Table of n, a(n) for n = 1..1000</a>
%t A198172 With[{len=8},Select[FromDigits/@Partition[RealDigits[Pi,10,1000][[1]], len,1],IntegerLength[#]==len&&PrimeQ[#]&]]
%Y A198172 Cf. A103773, A103789, A103793, A103808, A103809, A103810, A103811, A103812, A104824, A104825, A104826, A104843, A104844, A104845, A104846, A104847, A104848, A104849, A104850, A198161, A198162, A198163, A198164, A198165, A198166, A198167, A198168, A198169, A198170, A198171, A198173, A198174, A198175, A104851, A198177.
%K A198172 nonn,base
%O A198172 1,1
%A A198172 _Harvey P. Dale_, Oct 21 2011