Pebbles-kenshiro is a project mainly written in Ruby, based on the MIT license.
Calculate Kenshiro numbers.
See http://www.asahi-net.or.jp/~rc4t-ishr/kensiro.html for details.
gem install pebbles-kenshirorequire 'pebbles/kenshiro'
16.kenshiro # => 'あたたたた'