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 A152245 #6 Apr 09 2014 10:16:43 %S A152245 2,3,5,7,11,13,17,23,37,47,59,61,179,181,191,193,239,241,359,577,719, %T A152245 839,1259,1297,2521,2879,5039,6299,6301,6481,6719,7559,7561,10079, %U A152245 12289,14401,15121,15359,15361,20161,25919,32401,44101,45361,55439,55441 %N A152245 Primes p where |p-m| = 1, where m is any of the smallest positive integers with their number of divisors. (m belongs to sequence A007416.) %e A152245 The smallest positive integer with 8 divisors is 24. 24 - 1 = 23 is prime. But 24 + 1 = 25 is composite. So 23 is in the sequence, while 25 is not. %Y A152245 A007416, A152246 %K A152245 nonn %O A152245 1,1 %A A152245 _Leroy Quet_, Nov 30 2008 %E A152245 Extended by _Ray Chandler_, Dec 05 2008