It is stipulated that the "H operation" of positive integer n is: ① when n is odd, H = 3N + 13; ② when n is even, H = NX1 / 2x1 / 2 Where h is odd Q 7 after 2010 times of "H operation", how much is it equal to?

It is stipulated that the "H operation" of positive integer n is: ① when n is odd, H = 3N + 13; ② when n is even, H = NX1 / 2x1 / 2 Where h is odd Q 7 after 2010 times of "H operation", how much is it equal to?

H7=34..H34=17..H17=64..H64=1..H1=16..H16=1…… Period T = 2.. so (2010-4) / 2 = 1004, so the result of 2010 operations is 1

Let a = {x | x = 2n + 1, n belong to n}, B = {x | 1 ≤ x ≤ 10}, C = {x | x = 3N, n belong to n}, find the intersection of (a, b) and C

If the intersection of a and B is an odd number from 1 to 10 and C is a multiple of 3, the answers are 3 and 9
Thank you!

How many natural numbers from 200 to 600 are perfect squares?

15²=225
16²=256
17²=289
18²=324
19²=361
20²=400
21²=441
22²=484
23²=529
24²=576
There are 10 perfect squares