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 A014735 #18 Nov 19 2018 02:34:30
%S A014735 121,121,3249,3249,1418481,1418481,61009,18429849,243953161,243953161,
%T A014735 18429849,61009,1026169,1026169,23298053769,23298053769,16670889,
%U A014735 228743149441,103788925659225,103788925659225,228743149441
%N A014735 Squares of odd numbers in triangle of Eulerian numbers that are not 1.
%F A014735 a(n) = A014461(n)^2. - _Sean A. Irvine_, Nov 18 2018
%t A014735 A014735 = Select[Select[Flatten[Table[Plus @@ Table[(-1)^k*Binomial[i + 1, k]*(j - k)^i, {k, 0, j}], {i, 1, 15}, {j, 1, i}]], OddQ], # != 1 &]^2 (* Keith Schneider, Jul 03 2007 *)
%Y A014735 Cf. A008292, A014461.
%K A014735 nonn,easy
%O A014735 1,1
%A A014735 _Mohammad K. Azarian_
%E A014735 More terms from Keith Schneider, Jul 03 2007