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 A096838 #12 Nov 17 2019 01:16:15
%S A096838 2,3,3,2,2,2,2,2,2,2,2,2,3,3,2,1,2,2,2,3,2,2,2,1,2,3,3,3,3,2,2,2,2,2,
%T A096838 2,3,3,3,3,3,3,2,3,4,4,3,1,3,4,4,4,3,2,2,3,3,3,3,4,3,3,1,3,4,4,3,2,2,
%U A096838 3,3,4,2,2,3,3,3,2,2,2,1,2,2,2,3,3,3,2,3,4,4,3,1,2,2,2,3,2,2,2,2,2,2,3,3,3
%N A096838 Number of primes in the neighborhood of prime(n), the n-th prime in the center with radius ceiling(log(prime(n))).
%F A096838 a(n) almost equals A096509(prime(n)) >= a(n) because here only primes are counted, the true prime powers not.
%F A096838 For all n, a(n) >= 1.
%e A096838 a(100)=2 and the two primes in [534,548] are {541,547};
%Y A096838 Cf. A096509-A096523, A096830-A096840.
%K A096838 nonn
%O A096838 1,1
%A A096838 _Labos Elemer_, Jul 14 2004