After she dropped the photographs, they were 'out of sequence'. [=not in order, out of order]
He listened to the telephone messages 'in sequence'.
a 'sequence' of numbers/thoughts/poems/photographs
(..) Stop it! Just stop! Who are you? What are you talking about? Tell you what? Maybe who really killed him. The Fibonacci sequence. I believe Sauni're wrote it... ...so his investigation would include cryptographers. That's quite a leap, isn't it? No. (..)2006 The Da Vinci Code
(..) Please, pardon the interruption. This is not the time. I received the crime-scene jpegs at headquarters... ...and I've deciphered the code. It's a Fibonacci sequence. That's the code Sauni're left on the floor. Headquarters sent me to explain, captain. It is the Fibonacci sequence. (..)2006 The Da Vinci Code