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 A124681 #17 Oct 01 2023 14:44:18 %S A124681 14,29,49,217,757,613,1327,3661,6409,6349,15457,13057,17707,40789, %T A124681 53137,37993,104581,57757,152797 %N A124681 a(n) = number of conjugacy classes in PSL_4(prime(n)). %o A124681 (Magma) A124681 := func< n | NumberOfClasses(PSL(4,NthPrime(n))) >; %Y A124681 Cf. A000702, A006951, A124679, A124678. %K A124681 nonn,more %O A124681 1,1 %A A124681 _N. J. A. Sloane_, Dec 25 2006 %E A124681 a(5) and a(6) from _Klaus Brockhaus_, Dec 26 2006 and Oct 09 2010 %E A124681 a(7)..a(14) appended, from running MAGMA for 32 processor hours at U. Newcastle, by _Jason Kimberley_, Feb 09 2011. %E A124681 a(15)-a(19) from _Robin Visser_, Oct 01 2023