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%I #7 Feb 26 2018 09:19:14
%S 2,3,5,7,11,13,17,23,29,31,41,43,47,53,59,61,67,71,73,83,89,101,103,
%T 107,113,131,137,149,151,157,167,173,179,181,191,193,197,199,211,227,
%U 233,239,241,251,257,263,269,271,281,293,307,311,317,331,337,347,353,359
%N Prime numbers not in A299930.
%C 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 (Julia)
%o isA299956(n) = isprime(ZZ(n)) && !isA299930(n)
%o A299956list(upto) = [n for n in 1:upto if isA299956(n)]
%o println(A299956list(1000))
%Y Cf. A293654, A296095, A299214, A299498, A299733, A299928, A299929, A299930, A299964.
%K nonn
%O 1,1
%A _Peter Luschny_, Feb 25 2018
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