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 A040016 #26 Feb 16 2025 08:32:38
%S A040016 2,7,19,53,139,401,1093,2971,8101,22013,59863,162751,442399,1202603,
%T A040016 3269011,8886109,24154939,65659969,178482289,485165141,1318815713,
%U A040016 3584912833,9744803443,26489122081,72004899319,195729609407,532048240573,1446257064289,3931334297131
%N A040016 Largest prime < e^n.
%C A040016 A050809 is a subset. Lim_{n --> infinity} a(n+1)/a(n) = e. - _Jonathan Vos Post_, May 02 2006
%H A040016 Giovanni Resta, <a href="/A040016/b040016.txt">Table of n, a(n) for n = 1..1000</a>
%H A040016 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/e-Prime.html">e-Prime.</a>
%e A040016 a(20) = floor(e^20) - 54 = 485165195 - 54 = 485165141 as there are no primes p such that 485165141 < p < 485165195.
%t A040016 Table[NextPrime[E^n,-1],{n,30}] (* _Harvey P. Dale_, Jul 24 2016 *)
%o A040016 (PARI) a(n)=precprime(exp(n)) \\ _Charles R Greathouse IV_, Mar 26 2013
%Y A040016 Cf. A000040, A000149, A007512, A014210, A050808, A050809, A059303, A064118, A095935, A115019, A074496, A118840.
%K A040016 nonn
%O A040016 1,1
%A A040016 _Jud McCranie_
%E A040016 Edited by _N. J. A. Sloane_, Dec 22 2006
%E A040016 a(27)-a(29) from _Giovanni Resta_, Apr 29 2017