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 A354146 #32 May 25 2022 16:50:47 %S A354146 2,4,8,16,26,32,64,128,206,256,454,446,512,1024,2048,3142 %N A354146 Even numbers in A353730 in order of appearance. %C A354146 A090252(1535) = 256 and A090252(3071) = 478 are also even terms in A090252; the latter breaks the correspondence with this sequence. - _Michael S. Branicky_, May 21 2022 %Y A354146 Cf. A083356, A090252, A153894, A353730, A354255. %Y A354146 See also A247665 and A248379. %K A354146 nonn,more %O A354146 1,1 %A A354146 _N. J. A. Sloane_, May 21 2022 %E A354146 Deleted an incorrect comment. - _N. J. A. Sloane_, May 25 2022