41. The antidiagonals'sums are, the Fibonacci numbers . 42. In some cases, the numbers appear to be multiples of Fibonacci numbers because the spirals consist of whorls. 43. :: The Fibonacci numbers have many remarkable properties, such as that F 5n is a multiple of 5. 44. All the other numbers in the triangle are the product of two distinct Fibonacci numbers greater than 1. 45. An easily programmed alternative using only integer arithmetic is to calculate two large consecutive Fibonacci numbers and divide them. 46. Example :, the Fibonacci numbers . 47. An installation of Fibonacci numbers by Merz is the landmark of the Centre for International Light Art in Unna, Germany. 48. Every major firm on Wall Street employs forecasters who claim that Fibonacci numbers give them a glimpse of the future. 49. As there are arbitrarily long runs of composite numbers, there are therefore also arbitrarily long runs of composite Fibonacci numbers . 50. Lucas rather than Fibonacci numbers have been observed in a few plants and occasionally the leaf positioning appears to be random.
