15980
[Commentary:
On this folio Harriot is searching for a formula for the sequence 1, 6, 15, 28, ... of hexagonal numbers
(see Add MS 6782
f. ), or rather, for those numbers multiplied by 24, that is, 24, 144, 360, ....
Note that some of the coefficients on this page are ]
Note that some of the coefficients on this page are ]