The 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 ...

The On-Line Encyclopedia of Integer Sequences catalogues hundreds of thousands of integer sequences, and has been cited in thousands of research papers. The goal of this project is to discover new ...

The On-Line Encyclopedia of Integer Sequences catalogues hundreds of thousands of integer sequences, and has been cited in thousands of research papers. The goal of this project is to discover new ...

A pattern or a sequence is a set of numbers that are connected in some way. All sequences have a rule. For example, sometimes the numbers might count on by 5 each time, other times they might be ...

When you count the number of petals that different flowers have, you’ll discover that the most common number of petals is five. Buttercups, geraniums, pansies, primroses, rhododendrons, tomato ...

One of the curious properties of mathematics is its beauty. But exactly what mathematicians mean by beauty is hard to capture. Perhaps the most famous example is Euler’s relation, e iπ + 1 = 0, which ...

Neil Sloane is considered by some to be one of the most influential mathematicians of our time. That’s not because of any particular theorem the 75-year-old Welsh native has proved, though over the ...

When Neil Sloane was a young man, he started collecting objects he found beautiful. A common enough preoccupation perhaps, except for the particular objects Sloane chose: number sequences. CURIOUS ...

Time can be a lot of things, depending on whom you ask: money, an arrow, an illusion or the fourth dimension. No matter your definition, though, most people today agree on how to tell time, counting ...