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 A138788 #28 Oct 24 2024 09:26:16 %S A138788 2,5,59,1103,706799,20979619,21976689397 %N A138788 a(n) = A007878(prime(n)). %C A138788 Previous name was: Number of monomials in discriminant of symbolic polynomial of prime degree with all nonzero coefficients. %C A138788 Conjecture: All numbers in this sequence are primes. %C A138788 This conjecture is false, A007878(11) = 706799 = 41 * 17239. - _Vaclav Kotesovec_, Mar 29 2019 %H A138788 Mohammad K. Azarian, <a href="http://ijpam.eu/contents/2007-36-2/9/9.pdf">On the Hyperfactorial Function, Hypertriangular Function, and the Discriminants of Certain Polynomials</a>, International Journal of Pure and Applied Mathematics 36(2), 2007, pp. 251-257. MR2312537. Zbl 1133.11012. %F A138788 a(n) = A007878(prime(n)). %Y A138788 Subset of A007878. %Y A138788 Cf. A000040, A138787. %K A138788 nonn,more %O A138788 1,1 %A A138788 _Artur Jasinski_, Mar 30 2008 %E A138788 a(5) from _Vaclav Kotesovec_, Mar 29 2019 %E A138788 New name using formula from _Joerg Arndt_, Sep 07 2023 %E A138788 a(6) from _Seiichi Manyama_, Nov 08 2023 %E A138788 a(7) from the data at A007878 added by _Amiram Eldar_, Oct 24 2024