GENTREEG(1)

🌸 GENTREEG 💖

okay bestie, pull up a chair, we're in the User Commands section and today's main character is gentreeg 💅 this is literally the manual page for gentreeg 2.9.3, and she's here to generate trees for you. unrooted ones. iconic behaviour honestly 🌳✨

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🎀 NAME 🎀

gentreeg — the manual page for gentreeg 2.9.3 🫶

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✨ SYNOPSIS ✨

gentreeg [-D#] [-Z#:#] [-ulps] [-q] n|n1:n2 [res/mod] [file]

that's the whole vibe. one line. she doesn't need more 💅

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🦋 DESCRIPTION 🦋

so what does she DO? Generate (unrooted) trees. that's it, that's the job 💖

here's the tea on the arguments, no cap:

• n, n1:n2 — the number of vertices, or a range of them 🍓
• the outputs come out in order of the number of vertices, so it's all organised and cute, we love a sorted queen
• res/mod — only generate subset res out of subsets 0..mod-1 (yes it's a split-the-work situation, very demure, very mindful)

and now the flags, because there are a few and they're all lowkey important:

• -D# — an upper bound for the maximum degree 📐
• -Z#:# — bounds for the diameter 📏
• -s — use sparse6 output (this one is the default, so if you say nothing, this is what you get) ✨
• -p — write a parent array 👑
• -l — write a level array 🌈
• -u — do not output any graphs, just generate and count them 🔢 (counting era, not showing-off era)
• -q — suppress auxiliary output 🤫

ok and one more thing bestie: See program text for much more information. like, the manpage is the trailer, the program text is the whole movie 🎬 go read it, iykyk

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💜 sign-off 💜

and that's the page!! brought to you by gentreeg 2.9.3, dated September 2026, filed under GENTREEG(1) obviously 🎀 go generate some trees, bestie, you got this 🧚💖🌳