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 A278578 #19 Dec 01 2016 12:26:31 %S A278578 4,1,59,3481,5959,12117361,351581,344322938,995153,35509681, %T A278578 1223853461,117428054,58714027,2447706922,71019362,1990306,172161469, %U A278578 703162,24234722,11918,6962,118,2 %N A278578 a(n) = least value of k such that tau(k) = A000594(k) == n mod 23. %C A278578 A finite sequence, containing a(0) through a(22) only. %D A278578 Wilton, John Raymond. "Congruence properties of Ramanujan's function τ(n)." Proceedings of the London Mathematical Society 2.1 (1930): 1-10. Table I gives all 23 terms. %H A278578 J. R. Wilton, <a href="/A278578/a278578.pdf">Congruence properties of Ramanujan's function τ(n)</a>, annotated copy of page 8 only. %e A278578 tau(4) = -1472 is the first term of A000594 that is a multiple of 23, so a(0) = 4. %Y A278578 Cf. A000594, A106867. %K A278578 nonn,fini,full %O A278578 0,1 %A A278578 _N. J. A. Sloane_, Nov 29 2016 %E A278578 More terms from _Ray Chandler_, Dec 01 2016