A string of numbers by 1,1,2,2,3,3,4,4,5,5 From the first number on the left, the 35th number is (), and the sum of the first 36 numbers is ()

A string of numbers by 1,1,2,2,3,3,4,4,5,5 From the first number on the left, the 35th number is (), and the sum of the first 36 numbers is ()

A string of numbers by 1,1,2,2,3,3,4,4,5,5 From the first number on the left, the 35th number is (18) and the sum of the first 36 numbers is (342)

A group of numbers arranged in regular order: 1 / 4,3 / 9,7 / 16,13 / 25,21 / 36, ·______ . Thank you for your help

The numerator CN = an / BN is n ^ 2-N + 1, (n ^ 2 is the square of n) and the denominator is (n + 1) ^ 2

A set of regular numbers: 1 / 4, 3 / 9, 7 / 16, 13 / 25, 21 / 36. What is the ninth number? A set of regular numbers: 1 / 4, 3 / 9, 7 / 16, 13 / 25, 21 / 36... What is the ninth number?

The sixth number is 31 / 49
The molecules are + 2, + 4, + 6, + 8 each time,
The denominator is the square of 2,3,4,5,6,
The seventh is 43 / 64,
The eighth is 57 / 81,
The ninth is 73 / 100

The following sequence is arranged in this way: 1 3 2 4 5 6 10 9 8 7 11 12 13 14 15 The following sequence is arranged in this way One 32 4 5 6 10 9 8 7 11 12 13 14 15 What row and column is 2013

When n (n + 1) / 2 > 2013, n > 63; 63 * 64 / 2 = 2016
That is, 2016 is the largest number on line 63
The odd number row is positive, so 2013 is the 63rd line and the fourth from the bottom
The bank has 63 numbers, that is, 2013 is the 60th

Here's a set of numbers in regular order: 1, 2, 4, 8, 16. Then the 100th number should be a power of 100 of () a - 2 B 2 The following is a set of numbers arranged according to the law: 1,2,4,8,16. Then the 100th number should be the 100th power of () a - 2B2, the 100th power of C2 - 1D or more

It should be 2 ^ 99
Because the law of 1,2,4,8,16
So the 100th number should be 2 ^ 99
So choose D
Do not understand can also ask, satisfied please accept in time_ ∩)o

There is a regular string of numbers: 1, 2, 4, 7, 11, 16, 22, 29,..., the 2013 number of this string is ()

The difference between every two numbers is 1,2,3,4,5,6,7
So the nth number is n * (n-1) / 2 + 1
2013*2012/2+1=2025079

2, - 4, - 6,8,10, - 12 () ()... The 100th number is (), the 2014 number is () Completion

The 99th number: 198 the 100th number: - 200 the 2014 number: - 4028 the 2015 number: 4030
Hope to solve your problem

-1,2,3, - 4, - 5,6,7, - 8, what is the 2014 number?

+2014

-1,2 / 1, - 3,4 / 1, - 5,6 / 1-7,8 / 1. What is the number 20142015

2014╱1 -2015

Observe the following set of numbers and fill in the appropriate numbers in brackets: 1, - 2,4, - 8,16, - 32, () In order to write down, to the number of 2005 is______ .

According to 1, - 2,4, - 8,16, - 32 The results are as follows:
The nth number is (- 2) n-1,
Then the number of 2005 is (- 2) 2005-1 = 22004,
So the answer is: 22004