An artist named Thomas Pavitt has created what he believes to be the world’s biggest connect-the-dots drawing - a portrait of Mona Lisa created with 6,239 individual points. The incomplete and (somewhat jagged) completed version are both shown above.
This Puzzling Math Brain Teaser Has a Simple Solution
BY Kirstin Fawcett
July 25, 2017
Fans of number-based brainteasers might find themselves pleasantly stumped by the following question, posed by TED-Ed’s Alex Gendler: Which sequence of integers comes next?
1, 11, 21, 1211, 111221, ?
Mathematicians may recognize this pattern as a specific type of number sequence—called a “look-and-say sequence"—that yields a distinct pattern. As for those who aren't number enthusiasts, they should try reading the numbers they see aloud (so that 1 becomes "one one," 11 is "two ones," 21 is "one two, one one,” and so on) to figure the answer.
Still can’t crack the code? Learn the surprisingly simple secret to solving the sequence by watching the video below.