...or anyone with average discrete math skills.

Gotta find a solution to the following recurrence relation:

a_n = 2na_n-1, a₀ = 3

a₁ = 2(1)(3) = 6
a₂ = 2(2)(6) = 24
a₃ = 2(3)(24) = 144
a₄ = 2(4)(144) = 1152

a_n = ???

This is driving me crazy!!!

___________________
Alex English - Tech House Mixes

quote:

Originally posted by siastyle Okay iv hurd the Album and lemmi tell you guyz.... Tiesto is gono make it back to the top again with these hits. The thing about it is that hes trying 2 bring a new style tho just like he did with Just be and it worked. they songs areunt TOO HIGHT up. but the vocals acaully are the best thing in 2007. The Track Carpe Noctum is like traffic but it hink he could of prefected the shit ouf it. but generalllyy its an amazing album...oh and Ten Seconds Before Sunrise is like Forever today TIMES 12

Hmm.

Well 6*4= 24. 24*6=144. 144*8=1152. Does that point you in the right direction?

___________________
There are more things in heaven and earth, Horatio,
Than are dreamt of in your philosophy.

42.

___________________
There are more things in heaven and earth, Horatio,
Than are dreamt of in your philosophy.

quote:

Originally posted by Halcyon+On+On 42.

quote:

Originally posted by Ted Promo quote: Originally posted by Halcyon+On+On 42.

___________________

Stu, stop using your magical heathen quoting skills!

___________________
Quarantine Classics Brunello di Montalcino (In Transit) Edition [Progressive Classics] (August 2020)
Quarantine Classics - Puligny-Montrachet Edition [Progressive Classics] (April 2020)
What Is Progressive Anyways? [Progressive House Classics] (November 2019)

i thought i was good at math, but i think i had too much wine to be able to read that one.

Now what's the question?

quote:

Originally posted by WittyHandle Now what's the question?

Find a solution (formula) that will find you any term (n) you plug in.

Basically you find another way to express the first formula given but without using a_n-1. It eliminates the need need to know the first term in the sequence, 3.

___________________
Alex English - Tech House Mixes

quote:

Originally posted by siastyle Okay iv hurd the Album and lemmi tell you guyz.... Tiesto is gono make it back to the top again with these hits. The thing about it is that hes trying 2 bring a new style tho just like he did with Just be and it worked. they songs areunt TOO HIGHT up. but the vocals acaully are the best thing in 2007. The Track Carpe Noctum is like traffic but it hink he could of prefected the shit ouf it. but generalllyy its an amazing album...oh and Ten Seconds Before Sunrise is like Forever today TIMES 12

___________________
Nothing to see here

your solution is: 6n * (n-1)! * 2^(n-1)

note that 0! = 1

btw, how the hell do you do subscript/superscript on this forum?

___________________
I love grapes

quote:

Originally posted by Meat187 an = 3*2n*(n-1)!

HA! you're too late

edit: damnit, i just realized a problem in my solution

edit2: why did you delete your post, it was right...

___________________
I love grapes