# This b-file was computed by Antti Karttunen, 2023-01-17 # 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: # # A003415(n) = if(n<=1, 0, my(f=factor(n)); n*sum(i=1, #f~, f[i, 2]/f[i, 1])); # memoA359790 = Map(); # A359790(n) = if(1==n,1,my(v); if(mapisdefined(memoA359790,n,&v), v, v = -sumdiv(n,d,if(d