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 A229147 #16 Jul 17 2024 09:00:40 %S A229147 0,5,128,891,3584,10625,25920,55223,106496,190269,320000,512435, %T A229147 787968,1171001,1690304,2379375,3276800,4426613,5878656,7688939, %U A229147 9920000,12641265,15929408,19868711,24551424,30078125,36558080,44109603,52860416,62948009,74520000 %N A229147 a(n) = n^4*(3*n+2). %C A229147 Number of ascending runs in {1,...,n}^5. %H A229147 Alois P. Heinz, <a href="/A229147/b229147.txt">Table of n, a(n) for n = 0..1000</a> %H A229147 <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (6,-15,20,-15,6,-1). %F A229147 G.f.: (x^4+58*x^3+198*x^2+98*x+5)*x/(x-1)^6. %F A229147 a(0)=0, a(1)=5, a(2)=128, a(3)=891, a(4)=3584, a(5)=10625, a(n)= 6*a(n-1)- 15*a(n-2)+ 20*a(n-3)- 15*a(n-4)+ 6*a(n-5)- a(n-6). - _Harvey P. Dale_, Aug 14 2015 %F A229147 E.g.f.: exp(x)*x*(5 + 59*x + 87*x^2 + 32*x^3 + 3*x^4). - _Stefano Spezia_, Jul 17 2024 %p A229147 a:= n-> n^4*(3*n+2): %p A229147 seq(a(n), n=0..40); %t A229147 Table[n^4 (3n+2),{n,0,30}] (* or *) LinearRecurrence[{6,-15,20,-15,6,-1},{0,5,128,891,3584,10625},40] (* _Harvey P. Dale_, Aug 14 2015 *) %Y A229147 Row n=5 of A229079. %Y A229147 Cf. A000583, A016789. %K A229147 nonn,easy %O A229147 0,2 %A A229147 _Alois P. Heinz_, Sep 15 2013