# Find the next symbol in this sequence

I just came up with the following puzzle. I don't think anything like this has been asked here before, but I may be wrong.

What's the next symbol in this sequence?

 /\     /      /\     /             /\
/ /\   / /    /  \   /        /\   /        /
/ /    / /   \  /   \  /    /     \  /   \/
/      /      /      /             /     \


Hint

$\pi$ and xor

Spoiler

Write the digits of pi on a 7-segment display and generate every symbol in the sequence by combining the previous symbol with the next digit of $\pi$ with an xor. Start with all segments off.

• Yes! Well done. Sep 18 '14 at 17:38
• Can you please explain it to me? I dont understand "π and xor". Thanks.
– kai
Sep 19 '14 at 7:39
• π = 3.1415926 and XOR = exclusive or. Sep 19 '14 at 13:02
• So, for example, how do you get the first symbol combining 3 and 1? Sep 19 '14 at 13:32
• Oops, the explanation was wrong. I reformulated it. Sep 21 '14 at 1:11