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 A167200 #4 Jun 01 2025 17:01:37 %S A167200 6,10,14,18,2,30,34,38,26,46,62,66,70,42,78,54,94,126,130,134,74,142, %T A167200 50,86,58,158,110,190,254 %N A167200 Multiply the A161924 by 4 then add 2. %e A167200 a(n) begins 6 10 14 18 22 30 34 38 26 46 62 ... %e A167200 because A161924 begins: %e A167200 1.2.4..8.16.32.64.128.256.512.1024 %e A167200 ..3.5..9.17.33.65.129.257.513.1025 %e A167200 .......6.10.18.34..66.130.258..514 %e A167200 ....7.11.19.35.67.131.259.515.1027 %e A167200 ............12.20..36..68.132..260 %e A167200 .........13.21.37..69.133.261..517 %e A167200 ............14.22..38..70.134..262 %e A167200 ......15.23.39.71.135.263.519.1031 %e A167200 ...................24..40..72..136 %e A167200 ...............25..41..73.137..265 %e A167200 ...................26..42..74..138 %e A167200 ............27.43..75.139.267..523 %e A167200 .......................28..44...76 %e A167200 ...............29..45..77.141..269 %e A167200 ...................30..46..78..142 %e A167200 .........31.47.79.143.271.527.1039 %e A167200 ...........................48...80 %e A167200 .......................49..81..145 %e A167200 ...........................50...82 %e A167200 ...................51..83.147..275 %Y A167200 Cf. A000041 A161924 %K A167200 nonn,tabf %O A167200 1,1 %A A167200 _Alford Arnold_, Oct 30 2009