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 A106381 #14 Aug 16 2025 09:34:47 %S A106381 1,1,2,2,1,6,4,11,10,11,19,3,18,16,40,27,139 %N A106381 Real part of Gaussian prime numbers such that the Gaussian primorial product up to them is a Gaussian prime minus i. %C A106381 A106382 has the imaginary parts of these numbers. %H A106381 Sven Simon, <a href="/A106381/a106381_1.txt">Readable list of A106381/A106382</a>. %e A106381 (1+i)*(1+2i)*(2+i)*3*(2+3i)*(3+2i)*(1+4i) + i = (585-975i) + i = (585-974i), which is a Gaussian prime. This is the 5th number with the property, so a(5) = 1. %Y A106381 Cf. A103431, A103432, A106377, A106379, A106382, A106384. %K A106381 nonn,more %O A106381 1,3 %A A106381 _Sven Simon_, Apr 30 2005 %E A106381 a(15)-a(17) from _Amiram Eldar_, Aug 16 2025