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 A255427 #7 Feb 23 2015 23:05:41 %S A255427 3,15,105,35,385,5005,15015,255255,4849845,1616615,37182145,37182145, %T A255427 22309287,646969323,20056049013,33426748355,33426748355,1236789689135, %U A255427 1236789689135,50708377254535,2180460221945005,2180460221945005,102481630431415235 %N A255427 a(n) = product of distinct terms of row n in triangle A255313. %C A255427 Product of row n of table A255316; %C A255427 A001221(a(n)) = A001222(a(n)) = A255395(n); %C A255427 A006530(a(n)) = A060265(n). %H A255427 Reinhard Zumkeller, <a href="/A255427/b255427.txt">Table of n, a(n) for n = 1..1000</a> %o A255427 (Haskell) %o A255427 import Data.List (nub) %o A255427 a255427 = product . nub . a255313_row %Y A255427 Cf. A255313, A255316, A001221, A001222, A255395. %K A255427 nonn,look %O A255427 1,1 %A A255427 _Reinhard Zumkeller_, Feb 22 2015