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 A299956 #7 Feb 26 2018 09:19:14 %S A299956 2,3,5,7,11,13,17,23,29,31,41,43,47,53,59,61,67,71,73,83,89,101,103, %T A299956 107,113,131,137,149,151,157,167,173,179,181,191,193,197,199,211,227, %U A299956 233,239,241,251,257,263,269,271,281,293,307,311,317,331,337,347,353,359 %N A299956 Prime numbers not in A299930. %C A299956 These prime numbers cannot be represented by a cyclotomic binary form f as p = f(x,y) with x and y odd prime numbers and x > y. Apart from 2 they appear as the leafs of cbf-trees introduced in A299930. %o A299956 (Julia) %o A299956 isA299956(n) = isprime(ZZ(n)) && !isA299930(n) %o A299956 A299956list(upto) = [n for n in 1:upto if isA299956(n)] %o A299956 println(A299956list(1000)) %Y A299956 Cf. A293654, A296095, A299214, A299498, A299733, A299928, A299929, A299930, A299964. %K A299956 nonn %O A299956 1,1 %A A299956 _Peter Luschny_, Feb 25 2018