(mathematics) Fibonacci sequence

a natural phenomenon

appearance, entrance, revealing

to appear, to reveal

largely; mostly

a lot / a majority

(mathematics) a sequence of numbers, especially one that shows or is created under a certain pattern

a phenomenon

world / border

boundary / a bounded area or region / a bounded group of people, a society, a world as a social grouping, such as business, celebrities, or finance / the border edge of a thing