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What is the next number in this series?

Look at the series (6, 24, 60, 120, 210, 336, 504, ?), determine the pattern, and find the value of the next number!

Correct answers: 52

The first user who solved this task is Djordje Timotijevic.

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The Stormy Sea

As the storm raged, the captain realized his ship was sinking fast. He called out, "Anyone here know how to pray?" One man stepped forward. "Aye, Captain, I know how to pray." "Good," said the captain, "You pray while the rest of us put on our life jackets. We're one short."

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Typewriter

In 1843, the first U.S. design of a typewriter that successfully typed was issued a patent to Charles Thurber of Norwich, Conn. (No. 3,228) as a “machine for printing by hand by pressing upon keys which contain the type, called ‘Thurber's Patent Printer.’” He was the first to place the paper on a roller and give it longitudinal motion with provision for accurate letter and word spacing. It had a wheel carrying the keys around its circumference. A roller provided inking. However, the machine was slow to use, and only a concept model. Two years later, he patented a design for a writing (not typing) machine, which he called a Chirographer (18 Nov 1845, No. 4,271). On 27 Jun 1857, British Letters Patent were sealed (No. 1805) on Thurber's invention of “An improved caligraph.”«[Image: Thurber's Patent Printer of 1843.]

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