Most people consider the following to be significant birthdays:

1, 10, 18, 21, 30, 40, 50, 60, 70, 80, 90, 100, 101, 102, 103, 104, 105, …

As a self-identifying STEM nerd, I find the following list of significant birthdays much more interesting…

1, 2, 3, 4, 5, 8, 9, 13, 16, 18, 21, 25, 32, 34, 36, 49, 55, 64, 81, 89, 100, 121, 128, …

128 is my stretch goal. 🙂

(WIN! If you’re the first person to post the next ten numbers in the sequence in a comment, you’ll win a free warm fuzzy feeling of being the first person to post the next ten numbers in the sequence.)

Image credit: ‘BLOWING THE CANDLES2‘ by David Zellaby