Book numbers do not make sense when compiling a Bible

I am hunting down field on and off problems in a Bible text file, and doubled milestones to identify where a field error occurred. As you know, logos has assigned a number to each book of the Bible: 

Yes, but your table somehow has the wrong numbers.

61 = Mt

62 = Mk

63 = Lk

64 = Jn

65 = Acts

66 = Rm

.....

87 = Rev

EDIT: see eg. here for the list: https://wiki.logos.com/Logos_Bible_Book_Names