1 / 3, 2 / 8, 3 / 15, 4 / 24, 5 / 35, 6 / 48. What is the nth number Find the answer. Hurry up!

The numerator is n and the denominator is (n + 1) ^ 2-1

Find the law, 0, - 3,8, - 15,24, - 35,48, - 63, -

The order of the next number: 0,8,24,48,0 + 1 * 8,8 + 2 * 8,24 + 3 * 8.48 + 4 * 8 = 80
-3,-15,-35,-63,-3*5,-5*7,-7*9,-9*11=-99.

Find the rule 3 8 15 24 35 48 63 what's the 36th place

3=1x3
8=2x4
15=3x5
.
And so on, 36x38 = 1368

Find the law: 8,17,35,63, (), () How to fill in the following two brackets?

99 144

Find the law: (1) 1,1,3,7,17,41, () (2) 65,35,17,3, () (3) 2,8,24,64, ()

(3)1*2=2
2*4=8
3*8=24
4*16=64
5*32=160

What's the number 15, n.0?

The 15th number = 0 + 3 + 5 + 7 +. + (2 × 15-1)
=3+5+7+...+29
=(3+29)×14÷2
=224
The nth number is:
0+3+5+...+(2n-1)
=(3+2n-1)×(n-1)÷2
=N Square-1

1. Find the rule 0, - 3,8, - 15,24 （） … 1 1 1 -, -, -, -, - 2 6 12 20 1. Find the rules 0,-3,8,-15,24… （） … The 100th number 2. Or find the rules 1 1 1 1 - —,—,- —,—… 2 6 12 20 The tenth number is () the 15th number is () and the 206th number is ()

First, let's not look at the minus sign, 0 = 1 squared - 1, 3 = 2 squared - 1, 8 = 3 squared - 1
Therefore, to the N + 1 power of (- 1) * (the square - 1 of n), we can get the result - 9999
The second, 6-2 = 4 = 2 times 2; 12-6 = 2.3; 20-12 = 8 = 2.4
So the tenth number - the ninth number = 2 times 10
Add the equations together to get the tenth number - 2 = 2 (2 + 3 + 4 +. + 10) =
So the tenth number = 2 (1 + 2 + 3 +... + 10) = 10.11 = 110
The 15th number is 2 (1 + 2 +... + 15) = 15.16 = 240
2 (1 + 2 +... + 2006) = 2006.2007 = 4026042

3 / 8 / 15 / 24

The square of M minus one

Find the rule, 0,3,8,15,24, ····, then its 2011 number is and its nth number is It is expressed by the formula containing positive integer n

Each number is the square minus one
The square of 2011 - 1 = 4044120

Find the rule: 0, 3, 8, 15, 24 What is the nth number

Square of n-1

1 / 3, 2 / 8, 3 / 15, 4 / 24, 5 / 35, 6 / 48. What is the nth number Find the answer. Hurry up!