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 A281480 #9 Feb 08 2017 22:02:57 %S A281480 1,1,16510,17651304000,286988816206755000,35284812773848049161035000, %T A281480 21735699944364325706210750640600000, %U A281480 51125456932397825107093888817556205542000000,378603085421985456745667562645258531056443927230000000,7641597761030055776217194099395682779700673105680593973250000000 %N A281480 Central coefficients of the polynomials defined in A278074. %H A281480 Robert Israel, <a href="/A281480/b281480.txt">Table of n, a(n) for n = 0..70</a> %p A281480 # Function P defined in A278074. %p A281480 A281480 := n -> coeff(P(4,2*n),x,n): seq(A281480(n),n=0..9); %Y A281480 Central coefficients: A088218 (m=0), A210029 (m=1), A281478 (m=2), A281479 (m=3), A281480 (m=4). Related triangles: A097805 (m=0), A131689 (m=1), A241171 (m=2), A278073 (m=3), A278074 (m=4). %K A281480 nonn %O A281480 0,3 %A A281480 _Peter Luschny_, Jan 22 2017