3 ms·
Better not look at the related sequence https://oeis.org/A000127 https://oeis.org/A000127 1, 2, 4, 8, 16, 31, 57, 99, 163, 256, 386...
by Y_Y 4y ago
Better not look at the related sequence https://oeis.org/A000127 https://oeis.org/A000127
1, 2, 4, 8, 16, 31, 57, 99, 163, 256, 386...
- quirino 4y ago> Maximal number of regions obtained by joining n points around a circle by straight lines. I was ready to attempt drawing that, but then I saw the other possible definition: > Also number of regions in 4-space formed by n-1 hyperplanes. So much easier to visualize it like this!