|
%I #15 Apr 29 2021 01:44:44
%S 29,683,997,2207,30571351,271953103
%N Gilda's primes: primes in A042947.
%C Is this sequence infinite?
%H Russo, F. <a href="http://www.gallup.unm.edu/~smarandache/Felice-Russo-book1.pdf">A Set of New Smarandache Functions, Sequences and Conjectures in Number Theory.</a>, Lupton, AZ: American Research Press, 2000.
%o (PARI) for(n=1, 10^8, if(isprime(n), s=eval(Vec(Str(n))); f1=sum(i=1,#s,s[i]); f0=abs(2*s[1]-f1); f=f0+f1; while(f<=n, if(f==n, print1(n, ", "); break); f0=f1; f1=f; f=f0+f1))) \\ Herman Jamke (hermanjamke(AT)fastmail.fm), Mar 30 2008
%Y Cf. A042947.
%K nonn,base,less
%O 1,1
%A _Felice Russo_
%E a(5) from Herman Jamke (hermanjamke(AT)fastmail.fm), Mar 30 2008
%E a(6) from _Sean A. Irvine_, Apr 28 2021
|
