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 A198171 #16 Feb 02 2025 13:17:57
%S A198171 1592653,6535897,2643383,5028841,6939937,3993751,1170679,8086513,
%T A198171 5822317,1725359,4930381,2881097,4612847,3165271,2712019,1201909,
%U A198171 4914127,1133053,3841469,1469519,6951941,9433057,9326117,4462379,2749567,5272489,8912279,8183011
%N A198171 Primes from merging of 7 successive digits in decimal expansion of Pi forbidding leading zeros.
%C A198171 Leading zeros are not permitted, so each term is 7 digits in length.
%H A198171 Vincenzo Librandi, <a href="/A198171/b198171.txt">Table of n, a(n) for n = 1..1000</a>
%t A198171 With[{len=7},Select[FromDigits/@Partition[RealDigits[Pi,10,1000][[1]], len,1], IntegerLength[#]==len&&PrimeQ[#]&]]
%Y A198171 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, A198172, A198173, A198174, A198175, A104851, A198177.
%K A198171 nonn,base
%O A198171 1,1
%A A198171 _Harvey P. Dale_, Oct 21 2011