Poem 348: Adding Up

Adding 1 to 2 gives three

2 to 3 is five

adding 3 to 4 gives seven

4 to 5 is nine

adding 5 to 6 eleven

7 to 8 fifteen

adding 8 to 9 makes seventeen

9 to 10 nineteen

Adding 10 to 11 makes twenty-one

11 to 12 twenty-three

adding 12 to 13 makes twenty-five

13 to 14 twenty and seven

adding 14 to 15 makes twenty-nine

15 to 16 twenty and eleven

and if you follow the pattern it continues to be 

adding up rather oddly.