Find it!

Number Theory Level 3

1, 2, 6, 30, 260, 3130, __

Hint: The expression involves three n's and the five elementary operations.

If you do not see the point of the sequence problems, you might be correct

The answer is 46662.

1 solution

John M.
Dec 29, 2014

Agnishom Chattopadhyay

Moderator's Note: If you're looking for a closed form, it's $n^n + n$

Yet another Kaboobly Doo problem. It shocks me how 6 people managed to find the solution.

Agnishom Chattopadhyay - 6 years, 5 months ago

Hm, a closed form? Erm a little explication please? I'm not that pro xD

John M. - 6 years, 5 months ago

Oh, a closed form is just jargon for an expression in terms of a finite combination of elementary arithmetic operations, logarithms, trigonometric and hyperbolic functions.

See this chart

Agnishom Chattopadhyay - 6 years, 5 months ago

I've updated the problem @John Muradeli

Agnishom Chattopadhyay - 6 years, 5 months ago

lol you are hilarious! and I knew what closed form meant I just wondered how that related to $n^n+n$ but nvm :D

John M. - 6 years, 5 months ago

I am too fan of him , not understood

U Z - 6 years, 5 months ago

I'd like Agnishom to destroy all 'sequence' problems that were ever created!

Hah!

John M. - 6 years, 5 months ago

6^2 + 6 is not 30 I think so

Aditya Jain - 5 years, 3 months ago

Find it!

If you do not see the point of the sequence problems, you might be correct

The answer is 46662.

1 solution

Moderator's Note: If you're looking for a closed form, it's n n + n n^n + n n n + n

0 pending reports

Moderator's Note: If you're looking for a closed form, it's $n^n + n$