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%I #17 Aug 17 2022 10:15:18
%S 2,6,14,62,254,1022,16382,262142,1048574,4294967294,
%T 4611686018427387902,295147905179352825854,
%U 1237940039285380274899124222,324518553658426726783156020576254,340282366920938463463374607431768211454,348449143727040986586495598010130648530942
%N Even terms in A354525.
%C Even numbers k such that for every prime factor p of k we have gpf(k+p) = p, gpf = A006530.
%C Even numbers k such that for every prime factor p of k, k+p is p-smooth.
%F a(n) = 2*(2^A354531(n) - 1).
%e See A354532.
%o (PARI) lista(nn,{lim=256},{lim_p=1<<32}) = for(n=1, nn, if(isA354531(n,lim,lim_p), print1(2*(2^n-1), ", "))) \\ See A354531 for the function isA354531
%Y Cf. A006530, A354525, A354531, A354532, A354534, A354536.
%K nonn,hard
%O 1,1
%A _Jianing Song_, Aug 16 2022
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