2026-03-01T21:27:08Z https://nostr.now ruud de rooij https://nostr.now/npub1ksuvrlydqsqrm5jhs9m8cmteac38w2ytvsa29k9vgqpxnknnkzgsty9lxl https://media.hachyderm.io/accounts/avatars/109/394/334/292/076/258/original/f56ef5b72fea79d5.png https://media.hachyderm.io/accounts/avatars/109/394/334/292/076/258/original/f56ef5b72fea79d5.png https://nostr.now/nevent1qqs8htjnfsqv9kh69vdm5wdueu7wyg0y68d0mwruj80vsdktj70hjegzyz6r3s0u35zqq0wj27qhvlrd08hzyaeg3djr4gkc43qqy6w6wwcfzgap3jf Combinatorics can be a bit weird sometimes: the number of ways to arrange N Tetris pieces into a 2-by-2N rectangle is the Nth Fibonacci number squared.<br/><br/> <img src="https://media.hachyderm.io/media_attachments/files/116/150/422/498/826/394/original/8992884dcf4dfdef.jpeg"> 2026-02-28T21:41:19Z