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 A277318 #13 Oct 26 2016 15:15:12 %S A277318 3,6,18,30,270,450,630,6750,9450,15750,22050,2310,3543750,4961250, %T A277318 53156250,727650,173643750,18191250,25467750,2668050,90090,40020750, %U A277318 891371250,9550406250,212713593750,1400726250,3190703906250,467969906250,5013963281250,104053950,173423250,16378946718750,1715889656250,245684200781250 %N A277318 Prime-factorization representation of irreducible (non-constant) Stern-polynomials B(n,x), listed in the order of increasing index n: a(n) = A260443(A186891(n+1)). %Y A277318 Cf. A186891, A260443. %Y A277318 All terms are included in A206284 and in A277200 (apart from initial 3). %Y A277318 Cf. A277316 (conjectured subsequence), from which this differs for the first time at n=10, where a(10) = 15750 , while A277316(10) = 22050. %K A277318 nonn %O A277318 1,1 %A A277318 _Antti Karttunen_, Oct 11 2016