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 A325734 #12 Jul 20 2019 22:20:38
%S A325734 2,1,-1,0,3,-9,19,-35,63,-119,238,-483,945,-1715,2793,-3871,3871,0,
%T A325734 -14161,52479,-143717,345401,-767977,1613129,-3226258,6148961,
%U A325734 -11119031,18874261,-29414651,39955041,-39955041,0,151615947,-575723785,1611404739,-3936821259
%N A325734 First term of n-th difference sequence of (floor(k*e)), k >= 0.
%H A325734 Clark Kimberling, <a href="/A325734/b325734.txt">Table of n, a(n) for n = 1..200</a>
%t A325734 Table[First[Differences[Table[Floor[E*n], {n, 0, 50}], n]], {n, 1, 50}]
%Y A325734 Cf. A001113, A003417, A325664. Inverse binomial transform of A022843.
%K A325734 easy,sign
%O A325734 1,1
%A A325734 _Clark Kimberling_, May 20 2019