The Aperiodical 

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Recreational Maths Seminar – Seven Staggering Sequences

By Christian Lawson-Perfect. Posted December 3, 2012

Yesterday I hosted another recreational maths seminar on Google+. I had a lot of fun! We discussed the paper, Seven Staggering Sequences (PDF), by Neil Sloane. In the paper Sloane, the man behind the fantastic Online Encyclopedia of Integer Sequences, described seven of the sequences he found most especially interesting.

The Hangout was just under an hour and a half long, and we managed to get through five of the seven sequences. Some of them are really hard to understand!

[youtube url=http://www.youtube.com/watch?v=MBvyaku9Omw]

Recreational Maths Seminar this Sunday at 7pm GMT

By Christian Lawson-Perfect. Posted November 27, 2012

There was no Recreational Maths Seminar last Sunday because I had a confluence of work, family stuff and overknackeredness from MathsJam the week before. The coming weekend should be considerably less busy, so let’s have our second seminar this Sunday, the second of December, at 7pm GMT. That’s 2pm EST (New York), 11am PST(California) and 6am EDT (Eastern Australia, on the 3rd of December).

Recreational Maths Seminar – Picture-hanging puzzles

By Christian Lawson-Perfect. Posted November 12, 2012

I hosted the first (proper) Aperiodical recreational maths seminar yesterday. We discussed the paper Picture-hanging puzzles, by Demaine et al. Click through to watch the YouTube recording of the session.

Recreational Maths Seminar next Sunday at 7pm GMT

By Christian Lawson-Perfect. Posted November 4, 2012

Having gathered a few data points about people’s availability for the recreational maths seminar, and heavily weighted towards my own, it looks like weekend evenings are the most convenient times for everyone to get together for the recreational maths seminar. So, let’s say 7pm GMT on Sunday evening, the 11th of November. That’s 2pm EST (New York), 11am PST (California) and 6am EDT (Eastern Australia, on the 12th of November).