Edit: interesting how everyone assumes I mean relationships. I was trying to be vague. It could mean for siblings, for instance

  • ferric_carcinization@lemmy.mlEnglish
    0·
    3 months ago

    Up to three, with the following exceptions: Four is not acceptable. Neither is two, except if the next largest number happens to be a three. Five is right out.

    Also acceptable are prime numbers divisible by a previously mentioned number.

    – Book of Armaments, Chapter 6