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 A076959 #17 Jun 11 2024 04:38:35 %S A076959 0,2,9,32,119,435,1573,5695,20773,76057,279850,1033937,3837070, %T A076959 14296494,53468768,200673056,755606952,2853697709,10807617884, %U A076959 41036410818,156186010430,595759180892,2277112205791,8720036044777,33451314673521,128533154571957 %N A076959 Number of primes between 3^n and 4^n. %H A076959 Amiram Eldar, <a href="/A076959/b076959.txt">Table of n, a(n) for n = 1..46</a> %F A076959 a(n) = A086680(n) - A055729(n). %o A076959 (PARI) a(n) = primepi(4^n) - primepi(3^n); \\ _Michel Marcus_, Mar 22 2015 %Y A076959 Cf. A055729, A086680. %K A076959 nonn %O A076959 1,2 %A A076959 _Amarnath Murthy_, Oct 21 2002 %E A076959 More terms from _Ralf Stephan_, Oct 31 2002 %E A076959 a(14)-a(26) added by _David Baugh_, Mar 22 2015