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User:Keith J. Bauer
From OeisWiki
I do maths for fun. Currently an undergraduate CS major.
Here is my website and nLab page.
Here are my sequences in reverse chronological order:
2024
- Counting subobjects in the category of relations
- Arithmetic derivative in the ring of polynomials with coefficients in the finite field with two elements
- Sizes of finite fields such that halving the size of their unit group is also the unit group of a field
- Sequences about roots of endofunctions:
- Counting unlabeled mappings with unique square root
- Counting labeled mappings with unique square root
- Joerg Arndt called this sequence "good stuff!" and I'm very proud
- Counting unlabeled mappings with any cube root
- Counting unlabeled mappings with any square root
2023
- Integers ordered by decreasing ratio of divisors to self
- An unbounded Collatz trajectory in the ring of polynomials with coefficients in the finite field with two elements
2019
2018