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 A091839 #17 Aug 20 2022 13:34:34 %S A091839 1,3,1,8,1,3,1,24,1,3,1,8,1,3,1,67,1,3,1,8,1,3,1,24,1,3,1,8,1,3,1,195, %T A091839 1,3,1,8,1,3,1,24,1,3,1,8,1,3,1,67,1,3,1,8,1,3,1,24,1,3,1,8,1,3,1,580, %U A091839 1,3,1,8,1,3,1,24,1,3,1,8,1,3,1,67,1,3,1,8,1,3,1,24,1,3,1,8,1 %N A091839 A smoothed version of A091579. %C A091839 Obtained from A091579 by the following transformation: replace 4 by 3, 1; replace 9 by 8, 1; 25 by 24, 1; 68 by 67, 1; 196 by 195, 1; 581 by 580, 1; 1731 by 1730, 1; 15534 by 15533, 1, etc. %F A091839 New records (see A091588) first appear at powers of 2. Also a(2n+1) = 1; a(4n+2) = 3; a(8n+4) = 8; etc. %K A091839 nonn %O A091839 1,2 %A A091839 _N. J. A. Sloane_, Mar 10 2004 %E A091839 Removed an incorrect program. - _N. J. A. Sloane_, Aug 20 2022