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 A359229 #10 Feb 16 2025 08:34:04
%S A359229 1,5,14,30,1785,6930,149226,3573570,139223370,3708968340,62366724420,
%T A359229 2279301054030,1348519628145690,27928822496705130,1558931949520935990,
%U A359229 430616881400429491950,161887663616926971163440
%N A359229 a(n) is the smallest square pyramidal number with exactly n distinct prime factors.
%H A359229 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/DistinctPrimeFactors.html">Distinct Prime Factors</a>
%H A359229 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/SquarePyramidalNumber.html">Square Pyramidal Number</a>
%e A359229 a(4) = 1785, because 1785 is a square pyramidal number with 4 distinct prime factors {3, 5, 7, 17} and this is the smallest such number.
%Y A359229 Cf. A000330, A001221, A156329, A359192, A359230.
%K A359229 nonn,more
%O A359229 0,2
%A A359229 _Ilya Gutkovskiy_, Dec 22 2022
%E A359229 a(16) from _Jon E. Schoenfield_, Dec 22 2022