I had to laugh about your comment, this is exactly how it goes. People are used thinking in time units.

Then you have modified fibonacci, which make me puke. 1, 2, 3, 5, 8, 13, 20. I get special headaches because of names like this.

However you can find this page if you adding them up by as strings, it isn't connected, but attack on titan was a good anime: https://www.pixiv.net/en/artworks/123581320

Weird coincidence. I need to sleep, spend a lot today in my headspace.