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 A330361 #17 May 10 2020 18:19:36 %S A330361 15,3,51,1563,211,1123,15511,5487,37195,108963,331527,1493103,1103307, %T A330361 3248367,46574499,4814875,14747343,222808263,446500987,46936231, %U A330361 228462727,1003298383,1705601667 %N A330361 First occurrence of run of lucky numbers congruent to 3 mod 4 of exactly length n. %C A330361 Calculated using _Hugo van der Sanden_'s Lucky numbers up to 10^9 (private communication). %C A330361 a(24) > 4*10^9. - _Giovanni Resta_, May 10 2020 %H A330361 Amiram Eldar and Giovanni Resta, <a href="/A330361/a330361_1.txt">Table of n, k, A000959(k), ..., A000959(k+n-1) for n = 1..23</a> %e A330361 a(1) = 15 since 15 is a lucky number congruent to 3 mod 4, following 13 and followed by 21 which are both not congruent to 3 mod 4. %e A330361 a(2) = 3 since 3 and 7 are 2 consecutive lucky numbers congruent to 3 mod 4, following 1 and followed by 9 which are both not congruent to 3 mod 4. %Y A330361 Cf. A000959, A055624, A137170, A330359, A330360. %K A330361 nonn,more %O A330361 1,1 %A A330361 _Amiram Eldar_, Dec 12 2019 %E A330361 a(22)-a(23) from _Giovanni Resta_, May 10 2020