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 A249184 #13 Jul 28 2023 04:07:44
%S A249184 1,7,27,119,427,1799,6939,30583,109227,458759,1769499,7798903,
%T A249184 27984299,117901063,454761243,2004318071,7158278827,30064771079,
%U A249184 115964117019,511101108343,1833951035819,7726646167303,29802778073883,131352984844151,469126392949419
%N A249184 A249183 seen as binary numbers.
%C A249184 Appears to be basically the same as A048711. - _R. J. Mathar_, Nov 16 2014
%H A249184 Reinhard Zumkeller, <a href="/A249184/b249184.txt">Table of n, a(n) for n = 0..1000</a>
%F A249184 a(n) = Sum_{k=0..2*n} (A249133(n,k)*2^k).
%F A249184 A007088(a(n)) = A249183(n).
%F A249184 A000120(a(n)) = A105321(n).
%F A249184 A023416(a(n)) = A249304(n).
%t A249184 a[n_] := FromDigits[Mod[Riffle[Binomial[n, Range[0, n]], Binomial[n - 1, Range[0, n - 1]]], 2], 2]; Array[a, 25, 0] (* _Amiram Eldar_, Jul 28 2023 *)
%o A249184 (Haskell)
%o A249184 a249184 = foldr (\b v -> 2 * v + b) 0 . a249133_row
%Y A249184 Cf. A249183 (binary), A249133, A007088, A001317, A000120, A023416, A105321, A249304.
%K A249184 nonn
%O A249184 0,2
%A A249184 _Reinhard Zumkeller_, Nov 14 2014