The number of letters in the English word for each number

Rule

Each term is: The number of letters in the word for the number

Known as: The number of letters in the English word for each number

The first 50 terms (starting from n=1) are:

3 3 5 4 4 3 5 5 4 3 6 6 8 8 7 7 9 8 8 6 9 9 11 10 10 9 11 11 10 6 9 9 11 10 10 9 11 11 10 5 8 8 10 9 9 8 10 10 9 5

Example

To get the value for n=19:

• Count the number of letters in "nineteen", giving 8.

So the result is 8.