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 A092784 #11 Sep 02 2021 01:58:04
%S A092784 1,2,3,5,6,7,8,9,10,11,13,14,15,16,17,18,19,21,22,23,24,25,26,27,29,
%T A092784 30,31,32,33,34,35,37,38,39,40,41,42,43,45,46,47,48,49,50,51,53,54,55,
%U A092784 56,57,58,59,61,62,63,64,65,66,67,68,70,71,72,73,74,75,76,78,79,80,81,82
%N A092784 a(n) = round(n*(Pi - 2)).
%F A092784 a(n) = A022853(n) - A005843(n). - _Michel Marcus_, Sep 01 2021
%p A092784 seq(round(n*(Pi-2)), n=1..81);
%t A092784 Table[Round[n*(Pi-2)], {n,1,81}] (* _Georg Fischer_, Sep 01 2021 *)
%Y A092784 Cf. A005843, A022853.
%K A092784 nonn,easy
%O A092784 1,2
%A A092784 _Jorge Coveiro_, Apr 14 2004
%E A092784 Definition edited by _Georg Fischer_, Sep 01 2021