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 A117839 #17 Aug 30 2025 10:05:07 %S A117839 2,5,17,9255121991,28870447577 %N A117839 Primes of the form floor(Pi^k + e^k). %C A117839 Intersection of A000040 and A061675. %C A117839 The next term has 1535 digits. - _Harvey P. Dale_, Apr 26 2011 %t A117839 Select[Table[Floor[\[Pi]^n+E^n],{n,0,5000}],PrimeQ] (* _Harvey P. Dale_, Apr 26 2011 *) %Y A117839 See also A059792 (Numbers k such that floor(Pi^k) is prime) and their corresponding primes A077547. %Y A117839 See also A059303 (Numbers k such that floor(e^k) + 1 is prime) and their corresponding primes A118840. %Y A117839 Cf. A000040, A059303, A059792, A061675, A077547, A074496. %K A117839 nonn,changed %O A117839 1,1 %A A117839 _Jonathan Vos Post_, Apr 30 2006