Observe the rules and fill in the blanks: one plus one half, two plus one fourth, three plus one eighth The fifth number is, and the nth number is

Five plus one thirty-two
The nth number is n + 1 / (the nth power of 2)

RELATED INFORMATIONS

1. If we observe the law of 1:2,12:4,13:8, then the fifth number is () and the nth number is ()
2. Find the sum of 1, negative 2,. 3, negative 4,5, negative 6,7, negative 8.99, negative 100 integers, and calculate the formula
3. Find the sum of 1, negative 2,. 3, negative 4,5, negative 6,7, negative 8.99 and negative 100
4. 1 + 2-3-4 + 5 + 6-7-8 + 9 + 10. It is a continuous integer starting from 1. Take two positive and two negative in turn. What is the sum of the first 2006 numbers in this series
5. If 1 + 2-3 + 4-5 + 6-7 + 8-9 + , is the sum of the first 2000 numbers written down by taking two positive and two negative integers from 1 What is the sum of the first 2000 numbers? Why?
6. 1 + 2-3-4 + 5 + 6-7-8 +. Take two positive and two negative integers from 1. What is the sum of the first 2006 numbers?
7. 1 + 2-3-4 + 5 + 6-7-8 + 9 + 10-11-12. It is a continuous integer starting from 1. You can find the algebraic sum of 2008 numbers by taking two integers and two negatives in turn
8. There is a column of numbers: 3.6.9.12 ····· what is the number 200 in this column? What is the sum of the top 100 numbers?
9. There is a column of numbers 1, - 1,2, - 2,3, - 3
10. 2. - 4.6. - 8.10. - 12, 14, - 16 the 99th number is the 100th number
11. Observe the law of the following numbers and fill in the blanks: 0,3,8,15,24 ··, then what is its 2005 number? What is the nth number?
12. -2 4 - 8 16 - 32 this group of numbers in what order? With the algebraic expression containing N, thank you
13. Regularly arrange the number of a column: 1, - 2,3, - 4,5, - 6,7, - 8, expressed by the algebraic formula with n
14. According to this arrangement, the nth number is represented by an algebraic expression
15. What is the sixth pair of numbers (1,2), (4,6), (7,10) arranged according to the following rules
16. 1/2008+2/2008-3/2008-4/2008+5/2008+6/2008-7/2008-8/2008+9/2008+、、、、、、+2005/2008+2006/2008
17. What is the rule 2 + 8 = 15 1 + 3 = 06 4 + 6 = ()
18. Find the rule, -- 1.1/2, -- 1 / 3,1 / 4, -- 1 / 5,1 / 6?
19. 1-2+3-4+5-6+… +2007-2008+2009．
20. Compare 1 / 2 ^ 2 + 1 / 3 ^ 2 + 1 / 4 ^ 2 +. + 1 / 2008 ^ 2 + 1 / 2009 ^ 2 with 1