26 7 0 -2 Please find the pattern and write the next one! Okay, 20 more!

26 7 0 -2 Please find the pattern and write the next one! Okay, 20 more!

-9
law:
The third power minus 1
3^3-1=26 2^3-1=7 1^3-1=0 (-1)^3-1=-2 (-2)^3-1=-9

Find the rules 18 9 10 7 6 () () () what do you fill in the brackets

18 9 10 7 6 （5 ） （ 4 ） ( 3 ) ( 3 )
Parity separation
18 10 6 should get 4 3
-8 - 4 - 2 - 1 (reduced part, gradually halved)
9 7 can be regarded as a continuous odd number, resulting in 53

1. The number in the middle is 15, 2 right above, 3 at the bottom left and 5 at the bottom right 2. The number in the middle is 28, 7 right above, 4 at the bottom left and 2 at the bottom right 3. What is the middle number? 3 right above, 6 at the bottom left, and 4 at the bottom right

3x6x4/2=36

15,21,18,19,21,17, (), (). Give reasons

15,21,18,19,21,17,（ 24 ）,（ 15 ）.
Add 3 to odd number items one by one
Even minus 2 items one by one

Put 17, 18, 19, 20, 21, 22 in brackets to make the sum of the three numbers on each line equal It's a triangular pattern

17 21 19
22 20
Eighteen

Find the rule 2,3,5,6,7,10,11,13,14,15,17,19,21, () what should be filled in the brackets

It can be seen from the law that all of them are prime numbers and the product of only two different prime numbers; for example, 4 = 2 * 2, such as 8 = 2 * 2 * 2, such as 9 = 3 * 3; if 10 = 2 * 5, 2 and 5 are prime numbers, so 10 conforms to the law; for example, 12 = 2 * 2 * 3, such as 20 = 2 * 2 * 5; if 21 = 3 * 7, 3 and 7 are prime numbers, so 21 complies with the law; for example, 22 = 2 * 11, 2 and 11

How many are the 12th and the nth

Let the latter term be s (n) and the former term s (n-1). Start with the second term and find out the law
S(2)-S(1)=3,
S(3)-S(2)=5,
S(4)-S(3)=7,……
Therefore, there is a rule: s (n) - S (n-1) = 2N-1
That is, s (n) = s (n-1) + 2N-1 = (s (n-2) + 2 (n-1) - 1) + 2N-1 = Iterate here
Finally, s (n) = 2 + 3 + 5 + 7 + +2n-1=2+(3+2n-1)(n-1)/2=2+(n+1)(n-1)=n²+1
In other words, the nth number is n? 2 + 1, and the 12th number is 12? 2 + 1 = 145
I wish you all the best in your studies,

Thank you. There is a string of numbers 2,5,10,17,26,37,50. They are arranged according to certain rules. What is the difference between the 100th number and the 101st number

The difference between the former term and the latter term is 2N-1, where n is the subscript of the latter term, so the difference between the 100th number and the 101st number is 2 * 101 - 1 = 201

What is 2, 5, 10, x, 26, 37, 50, 65,. X in a math problem

17, each of the two numbers is 3, 5, 7 The gap between

Fill in the numbers according to the rules （1）1,8,27,（ ）,125,216... (2) One half, two fifths, three tenths, four seventeen, six thirty-seven (3) 12 △ () = 0.75 = twenty four () = (): 4 = ()%

64 (square)
5 / 26 (denominator odd addition)
16,18,3,75