in order vs sequential

in order

adj
  • In a sequence. 

  • In accordance with the procedural rules governing formal meetings of a deliberative body. 

  • Appropriate, worthwhile. 

  • Ready, prepared; orderly; tidy. 

adv
  • In sequence. 

  • Emphasizes that what follows immediately is the purpose of the preceding or the beyond. 

  • She stood in order to see over the crowd. / She stood to see over the crowd. 

sequential

adj
  • Expressing succession of events. 

  • Executed as a sequence of instructions, without concurrency or parallelism. 

  • Succeeding or following in order. 

How often have the words in order and sequential occurred in a corpus of books? (source: Google Ngram Viewer )