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 A378338 #6 Nov 25 2024 20:44:43 %S A378338 1,0,1,2,1,4,8,13,29,60,121,275,604,1332,3035,6866,15623,36110,83421, %T A378338 193114,451851,1057860,2482062,5864466,13873957,32891337,78352991, %U A378338 186929542,446870480,1071922233,2575310764,6198621655,14957681872,36148936396,87506326488,212249136940,515546059746,1254062268245 %N A378338 Number of n edge connected sensed planar maps with an external face in which all internal faces are triangles. %H A378338 Andrew Howroyd, <a href="/A378338/b378338.txt">Table of n, a(n) for n = 3..100</a> %o A378338 (PARI) A378338seq(30) \\ See PARI link in A378340 for program code. %Y A378338 Antidiagonal sums of A378336. %Y A378338 Cf. A378335, A378337, A378342 (achiral), A378343 (unsensed). %K A378338 nonn %O A378338 3,4 %A A378338 _Andrew Howroyd_, Nov 23 2024