EditorialThe Fibonacci sequence, in which every term (starting with the 3rd term) is the sum of the two preceding numbers, is one of the more familiar sequences in the On-Line Encyclopedia of Integer Sequences, which first appeared as a handbook in 1973. (Tony Cenicola/The New York Times)
EditorialPages 47v and 48r from Simon Jacobs' 's arithmetic book on the lines and with numbers ...', Pages 47v and 48r with Fibonacci row from Simon Jacobs' 's arithmetic book on the lines and with numbers ...' from the 16th century, p. 47v & 48r, 1594, Simon J...