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 A342763 #9 Mar 29 2021 15:16:27 %S A342763 1,2,2,2,3,6,10,15,27,45,85,153,297,561,1105,2145,4257,8385,16705, %T A342763 33153,66177,131841,263425,525825,1051137,2100225,4199425,8394753, %U A342763 16787457,33566721,67129345,134242305,268476417,536920065,1073823745,2147581953,4295131137 %N A342763 Fold a square sheet of paper alternately vertically to the left and horizontally downwards; after each fold, draw a line along each inward crease; after n folds, the resulting graph has a(n) regions with minimal area. %C A342763 We count the regions whose area is 1/2^n that of the sheet of paper. %C A342763 A342759 is the main sequence for this entry. %H A342763 Rémy Sigrist, <a href="/A342763/a342763.png">Illustration of initial terms</a> %H A342763 Rémy Sigrist, <a href="/A342763/a342763.txt">C# program for A342763</a> %e A342763 See Illustration in Links section. %o A342763 (C#) See Links section. %Y A342763 Cf. A342759. %K A342763 nonn %O A342763 0,2 %A A342763 _Rémy Sigrist_ and _N. J. A. Sloane_, Mar 21 2021