prog.sf

#!/usr/bin/ruby

# a(n) is the largest prime factor of 2^p - p^2 where p is the n-th prime
# https://oeis.org/A350964

include('../../../factordb/auto.sf')

func a(n) {
     2**prime(n) - prime(n)**2
}

var fh = File('bfile.txt').open_w

fh.autoflush(true)

for n in (3..10000) {
    var row = "#{n} #{gpf(a(n))}"
    say row
    fh.say(row)
}

__END__

not FF: 6864797660130609714981900799081393217269435300143305409394463459185543183397656052122559640661454554977296311391480858037121987999716643812574028291114785711