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 A134364 #10 Aug 10 2021 11:12:04
%S A134364 1,2,3,4,5,2,7,8,9,30,11,12,13,42,3,16,17,6,19,180,105,66,23,72,25,78,
%T A134364 27,252,29,2,31,32,165,102,5,4,37,114,195,1080,41,70,43,396,45,138,47,
%U A134364 432,49,150,255,468,53,18,385,1512,285,174,59,12,61,186,1575
%N A134364 a(n) = Product_{k=1..A061395(n)} prime(k)^|A134363(n,k)| for n >= 2; a(1) = 1.
%e A134364 Row 20 of A134363 is {2,-2,1} because 20 = 2^2 * 3^(2-2) * 5^(2-2+1) = 2^2 * 3^0 * 5^1. So a(20) = 2^|2| * 3^|-2| * 5^|1| = 180.
%Y A134364 Cf. A061395, A134363.
%K A134364 nonn
%O A134364 1,2
%A A134364 _Leroy Quet_, Oct 22 2007
%E A134364 More terms from _Jinyuan Wang_, Aug 10 2021