Post #1662588

I've been playing around with making psychedelic visualizations of the Recaman sequence, using Alex Bellos' method (https://www.youtube.com/watch?v=FGC5TdIiT9U). Here are the first 100 numbers in the sequence. Starting with n_0=0, each n_i = n_i-1 - i, unless that would give a negative number OR a number that's already been seen. In those cases, n_i = n_i-1 + i. It's not known whether the sequence hits all positive integers eventually. In the picture, semicircles show the jumps between successive numbers. #math