Simon Plouffe
Simon Plouffe is a mathematician who discovered the Bailey–Borwein–Plouffe formula which permits the computation of the nth binary digit of π, in 1995.
He co-authored The Encyclopedia of Integer Sequences, made into the web site On-Line Encyclopedia of Integer Sequences dedicated to integer sequences later in 1995. In 1975, Plouffe broke the world record for memorizing digits of π by reciting 4096 digits, a record which stood until 1977.
His is a web site that contains 11.3 billion mathematical constants as of August 15, 2017.
