And here I thought it was the first and seventh squares!
actually its random... I mined it. If you hash my username you get a hash with six leading 0s https://codebeautify.org/sha256-hash-generator/y24623078
I'm not that creative, I just wrote a script to generate me a username 😀
Discussion
why it dropped on me was because it was a square series, based on the addition series 1, 2, 3 which is like a symbol for "elementary" - in Hungary they say "abc" in a similar way for "general" in shop signs
see, i'm not a crazy numerologist, dis be matematka lel