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What number comes next?

Look at the series (1,9,5,49,11,169,17), determine the pattern, and find the value of the next number!

Correct answers: 161

The first user who solved this task is Djordje Timotijevic.

#brainteasers #math

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@kirkfox won't save you

I USED TO THINK THAT I COULD BE A HERO.

I USED TO WANT TO,BUT AS I'VE GOTTEN OLDER,

I'VE REALIZED THERE'S LESS AND LESS PEOPLE

THAT I WANT TO SAVE.

@kirkfox won't save you. http://on.cc.com/1HeB2l4

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Early email proposal

In 1884, the New York Times reported that “sending mails by electricity” was to be investigated by the Post Office Committee of the U.S. House, by providing for contracts with an existing telegraph company. The proposal was that since carriage of letters by steam locomotives was already done by contract, the delivery of mails by electricity seemed analagous. Such a method would be economical, and “might speedily make the present volume of business seem infantile.” Contracting was suggested, since in 1869, an earlier report of the House Post Office Committee had been adverse to the idea of government ownership and expense of postal telegraph lines.«

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