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 A382131 #28 Jun 14 2025 00:16:25 %S A382131 2,3,5,15,46,136,385,1072,2949,8063,21977,59814,162683,442329,1202507, %T A382131 3268905,8885983,24154809,65659808,178482121,485164996,1318815514, %U A382131 3584912605,9744803182,26489121842,72004899025,195729609091,532048240238,1446257063900,3931334296724,10686474581075 %N A382131 Complement of A381767. %H A382131 Chai Wah Wu, <a href="/A382131/b382131.txt">Table of n, a(n) for n = 1..100</a> %F A382131 a(n) ~ e^(n-1) (conjectured) %F A382131 e^(n-1) - 2*n^2 < a(n) < e^(n-1). - _Yifan Xie_, May 20 2025 %Y A382131 Cf. A381767. %K A382131 nonn %O A382131 1,1 %A A382131 _Mike Sheppard_, Mar 16 2025 %E A382131 More terms from _David A. Corneth_, May 20 2025