# What is the value of x in the given puzzle?

What is the value of x in the given puzzle?

So many tries, I still haven't got the right answer. Is there any mistake in the puzzle?

Our teacher gave it us. He was asked by another teacher.

Plain-text:


\      |      /
\  3  |  x  /
\    |    /
\   |   /
\  |  /
584   \ | /   33
\|/
----------------------
/|\
399   / | \   84
/  |  \
/   |   \
/    |    \
/ 258 | 155 \
/      |      \

• It looks like this : oeis.org/A027444. Since you asked if there was any mistake, well, maybe... – IAmInPLS Sep 29 '16 at 17:01

14. The sequence should be: $3,14,39,84,155,258,399,584$, which is $n^3+n^2+n$, but the teacher made a mistake and wrote $33$ instead of $39$.