Sha256: 1e7cc091e0b51d89395bececfd5afbfcb992aefff2562fe0589cdd610e4fb440
Contents?: true
Size: 341 Bytes
Versions: 5
Compression:
Stored size: 341 Bytes
Contents
# coding: utf-8 class Integer def takeuchi n = self return n if n <= 1 (0..n-2).map do |k| ( (2 * (n + k - 1).choose(k)) - (n + k).choose(k) ) * (n - k - 1).takeuchi end.reduce(:+) + (1..n).map(&:catalan).reduce(:+) end memoize :takeuchi def takeuchi? in_sequence?(seq: :takeuchi) end end
Version data entries
5 entries across 5 versions & 1 rubygems
Version | Path |
---|---|
numb-0.186.0 | lib/numb/takeuchi.rb |
numb-0.185.0 | lib/numb/takeuchi.rb |
numb-0.184.0 | lib/numb/takeuchi.rb |
numb-0.181.0 | lib/numb/takeuchi.rb |
numb-0.170.0 | lib/numb/takeuchi.rb |