#sequence  serial arrangement in which things follow in logical order or a recurrent pattern; "the sequence of names was alphabetical"
  supertype:  series  similar things placed in order or happening one after another; "they were investigating a series of bank robberies"
  subtype:  combination.sequence  a sequence of numbers or letters that opens a combination lock; "he forgot the combination to the safe"
  subtype:  Fibonacci_sequence  a sequence of numbers in which each number equals the sum of the two [receding numbers
  subtype:  codon  a specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid

No statement uses or specializes sequence; click here to add one.