Solve a numerical reasoning problem 0 1 2 9 44 ? ）

Method 1: The answer should be 265 according to the formula an[n!e 1 2] Note [x] indicates the largest integer not exceeding x; e is the natural logarithm e, I still use words to explain it, it is clearer and easier to understand, an is equal to n, the factorial is divided by e, and then rounded.

Law 2: n: 1 2 3 4 5 6 ....

an:0 1 2 9 44 265…

a2＝0×2＋1 a3＝1×3-1 a4＝2×4＋1 a5＝9×5-1 ∴a6＝44×6 1＝265

Cross-multiplication recursive formula an 1 an(n 1) (1) (n 1) Method 3: a3 (0 1) 2 a4 (1 2) 3 a5 (2 9) 4 a6 (9 44) 5 265 The recursive formula can be pushed by itself.

Personally, I recommend using the general formula of Method 1.

I've thought about it for a long time, I've pushed it for a long time, and I've lost it for a long time, I hope it will be useful to everyone.

The answer is 212

Multiply the sum of the first two numbers by the number of the previous numbers.

For example, 0+1=1, multiplied by 2 (because 0, 1 is a total of two numbers), it is equal to 2, to get the next number, then 1+2=3, and then multiplied by 3, so it is equal to 9, 9+2=11, multiplied by 4 to get 44, and finally 44+9=53 multiplied by 4 equals 212

The difference of 3 in the middle is 0 power, 1 bend inspection party, and 2 power ......)

I changed the number sequence, and it was clear that Minghe was dismantled vertically.

0,1 9,2 27,1 ,1 9,2 27,3 Yuhuai jujube 81,4 243

The denominator is 0,1,2,3,4

A numerator is a proportional sequence with a ratio of 3.

It's actually 0, 1 4, 2 8, 3 16, 4 32, so the following is 5 64

The square of the previous number, the first odd clear cover several subtraction rounds 1, the first Tong dress even digits plus 1:

an=(an-1)^2+（-1）^n

The answer is 8

1=Power 0 of 5.

4=4 to the power of 1.

9=2 powers of 3.

8=3rd power of 2.

1 = 4 powers of 1.

0=5 power of 0.

Later, if you see that there are two 1s in the question and the interval is large, the first thing you should think of is that the power of the power is focused on the two 1s

Hello, I'll help you out.

Taken aside, it can be seen as 149

The following set of numbers is not enough, it is not easy to judge, I personally think that 3 = 2 2-1 21 = 1 2-0 2

So the next one is 0 2-1 2=-1

Or subtract 2 in turn, which is also -1