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 A198173 #16 Feb 02 2025 13:19:29
%S A198173 795028841,502884197,884197169,971693993,348253421,421170679,
%T A198173 306647093,812848111,659334461,233786783,648566923,346034861,
%U A198173 326648213,829254091,678925903,959195309,530921861,938183011,298336733,798609437,717629317,320005681,757789609
%N A198173 Primes from merging of 9 successive digits in decimal expansion of Pi forbidding leading zeros.
%C A198173 Leading zeros are not permitted, so each term is 9 digits in length.
%H A198173 Vincenzo Librandi, <a href="/A198173/b198173.txt">Table of n, a(n) for n = 1..1000</a>
%t A198173 With[{len=9},Select[FromDigits/@Partition[RealDigits[Pi,10,1000][[1]], len,1],IntegerLength[#]==len&&PrimeQ[#]&]]
%Y A198173 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, A198172, A198174, A198175, A104851, A198177.
%K A198173 nonn,base
%O A198173 1,1
%A A198173 _Harvey P. Dale_, Oct 21 2011