There is a column of numbers 1, 5, 9, 13, 17. What is the number 1000 in this column? What is the number 157 in this column?

There is a column of numbers 1, 5, 9, 13, 17. What is the number 1000 in this column? What is the number 157 in this column?

three thousand nine hundred and ninety-seven
forty