# This b-file was computed by Antti Karttunen, 2024-02-09 # in GP/PARI CALCULATOR Version 2.9.4 (released) amd64 running linux (x86-64/GMP-6.1.2 kernel) 64-bit version, compiled: Dec 19 2017, gcc version 7.3.0 (Ubuntu 7.3.0-1ubuntu1), threading engine: pthread # with the following program: # # up_to = 20000; # A083345(n) = { my(f=factor(n)); numerator(vecsum(vector(#f~, i, f[i, 2]/f[i, 1]))); }; # A369001(n) = !(A083345(n)%2); # A369980list(up_to) = { my(v=vector(up_to), oc=A369001(1), nc, n=0, on=1, k=0); while(k