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 A121282 #15 May 29 2018 18:46:59
%S A121282 0,9,18,26,35,43,52,60,69,77,86,94,103,112,120,129,137,146,154,163,
%T A121282 171,180,188,197,205,214,223,231,240,248,257,265,274,282,291,299,308,
%U A121282 316,325,334,342,351,359,368,376,385,393,402,410,419,427,436,445,453,462
%N A121282 a(n) = ceiling(n*Pi*e).
%H A121282 Vincenzo Librandi, <a href="/A121282/b121282.txt">Table of n, a(n) for n = 0..1000</a>
%t A121282 Table[Ceiling[n Pi E], {n, 0, 80}] (* _Vincenzo Librandi_, Feb 22 2013 *)
%Y A121282 Cf. A032739, A062541.
%K A121282 less,nonn,easy
%O A121282 0,2
%A A121282 _Mohammad K. Azarian_, Aug 24 2006
%E A121282 Offset corrected by _Arkadiusz Wesolowski_, Jun 05 2011