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 A334982 #27 Mar 10 2025 11:51:22 %S A334982 7,19,3067,3313,3313,11550481,11550481,475389133,1128863117, %T A334982 1175267983,19507818293,176622893141,176622893141,495495126109, %U A334982 4411512992681,122634868247173,122634868247173 %N A334982 a(n) is the earliest start of a run of at least n consecutive primes that are also happy numbers. %H A334982 Shyam Sunder Gupta, <a href="https://doi.org/10.1007/978-981-97-2465-9_7">Happy Numbers</a>, Exploring the Beauty of Fascinating Numbers, Springer (2025) Ch. 7, 209-222. %H A334982 Carlos Rivera, <a href="https://www.primepuzzles.net/puzzles/puzz_1002.htm">Puzzle 1002. Consecutive primes that are also happy numbers</a>, The Prime Puzzles & Problems Connection. %Y A334982 Cf. A007770. %K A334982 nonn,base,more %O A334982 1,1 %A A334982 _Carlos Rivera_, May 18 2020 %E A334982 a(11)-a(17) from _Giovanni Resta_, May 23 2020 %E A334982 a(16) corrected by _Giovanni Resta_, May 30 2020