experimental-projects/oeis-research/Omar E. Pol/Numbers n such that sigma(n) is a partition number/prog.sf

#!/usr/bin/ruby

# Numbers n such that sigma(n) is a partition number.
# https://oeis.org/A252891

var arr = []

for k in (1..10000) {
    var inv = k.partitions.inverse_sigma

    arr += inv

    if (arr.len >= 200) {
        arr.sort.each_kv{|k,v|
            say "#{k+1} #{v}"
        }
        break
    }
}