-2 4 - 8 16 - 32 this group of numbers in what order? With the algebraic expression containing N, thank you | Math enthusiast | Mathematical art

-2 4 - 8 16 - 32 this group of numbers in what order? With the algebraic expression containing N, thank you

This is the law of the sequence
an=(-2)^n
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RELATED INFORMATIONS

1. 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?
2. 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
3. If we observe the law of 1:2,12:4,13:8, then the fifth number is () and the nth number is ()
4. Find the sum of 1, negative 2,. 3, negative 4,5, negative 6,7, negative 8.99, negative 100 integers, and calculate the formula
5. Find the sum of 1, negative 2,. 3, negative 4,5, negative 6,7, negative 8.99 and negative 100
6. 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
7. 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?
8. 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?
9. 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
10. 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?
11. Regularly arrange the number of a column: 1, - 2,3, - 4,5, - 6,7, - 8, expressed by the algebraic formula with n
12. According to this arrangement, the nth number is represented by an algebraic expression
13. What is the sixth pair of numbers (1,2), (4,6), (7,10) arranged according to the following rules
14. 1/2008+2/2008-3/2008-4/2008+5/2008+6/2008-7/2008-8/2008+9/2008+、、、、、、+2005/2008+2006/2008
15. What is the rule 2 + 8 = 15 1 + 3 = 06 4 + 6 = ()
16. Find the rule, -- 1.1/2, -- 1 / 3,1 / 4, -- 1 / 5,1 / 6?
17. 1-2+3-4+5-6+… +2007-2008+2009．
18. Compare 1 / 2 ^ 2 + 1 / 3 ^ 2 + 1 / 4 ^ 2 +. + 1 / 2008 ^ 2 + 1 / 2009 ^ 2 with 1
19. A series of numbers in regular order: 1, 3, 7, 13, 21, 31 What's the number in 2008? It's better to have a formula
20. 1 ^ 4 x 2 ^ 4 + 3 ^ 4 x Ten 2007 ^ 4 ten 2008 ^ 4 ten 2009 ^ 4