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 A096513 #8 Mar 23 2024 20:05:29 %S A096513 2,36,37,38,42,48,52,53,55,73,87,88,92,93,94,96,97,113,114,116,117, %T A096513 118,120,121,137,138,139,140,141,142,144,146,147,148,149,150,156,158, %U A096513 159,160,180,181,182,183,184,186,188,189,190,200,201,202,203,205,217,221 %N A096513 Numbers k such that A096509(k) = 2; i.e., the number of prime powers (including primes) in the neighborhood of k with radius ceiling(log(k)) is 2. %e A096513 k=36 is a term: ceiling(log(36)) = ceiling(3.5835...) = 4, and in [36-4, 36+4] = [32, 40], 32 and 37 are the two corresponding powers of primes. %Y A096513 Cf. A096508-A096519. %K A096513 nonn %O A096513 1,1 %A A096513 _Labos Elemer_, Jul 12 2004