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 A249328 #45 Jun 25 2025 00:01:41 %S A249328 2,3,5,4,7,18,32,91,142,454,1,245,15,16,126,10,304,74,202,0,296,409, %T A249328 227,89,865,425,183,384,616,634,1200,1467,1226,159,233,2023,584,1384, %U A249328 745,764,770,329,1582,1721,585,85,392,136,3984,740,302,890 %N A249328 Position where n occurs first in the continued fraction expansion of e^3. %o A249328 (Sage) %o A249328 l = continued_fraction(exp(3))[:10000] %o A249328 [next((i for i, x in enumerate(l) if x == n), None) for n in range(1,100)] %Y A249328 Cf. A058282. %K A249328 nonn %O A249328 1,1 %A A249328 _Ralf Stephan_, Jan 12 2015