What is the answer to an h-operation with odd number 3N = 13 and even number * 1 / 2 until odd number 257?
It is equal to 1. When the number of operations is more than 10, it is equal to 1 after even operations and 16 after odd operations
RELATED INFORMATIONS
- 1. 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 For example, the result of number 3 after one "H operation" is 22, the result after two "H operations" is 11, and the result after three "H operations" is 46 (1) Find 257, after 257 times of "H operation" to get the result (2) If the result of "H operation" is always constant a, find the value of A I want to solve the problem
- 2. Let a = {x | x = 2n + 1, n ∈ n}, B = {x | 1 ≤ x ≤ 10}, C = {x | x = 3N, n ∈ n}, find (a ∩ b) ∩ C
- 3. The sum of all digits of natural number n is Sn, such as n = 38, Sn = 3 + 8 = 11; n = 247, Sn = 2 + 4 + 7 = 13. If n-sn = 2007 is satisfied for some natural numbers, the maximum value of n is () A. 2025B. 2023C. 2021D. 2019
- 4. For the natural number n, the sum of the numbers is Sn, such as s2005 = 2 + 0 + 0 + 5 = 7, then S0 + S1 + S2004+S2005=?
- 5. How to calculate the sum of incomplete squares of 100 natural numbers from 1 to 100?
- 6. How many squares are there in natural numbers 100 to 200?
- 7. Natural numbers m, n satisfy m + n = 1991, prove: 10 ^ m + 10 ^ n is a multiple of 11? Who knows?
- 8. M. N is a non-zero natural number, and 1 / M-1 / N = 2 / 143, M + n = () how to do
- 9. If the natural number AB satisfies 1 / A-1 / b = 1 / 182 and a: B = 7:13, what is the sum of a + B Why is this 13 / 7b-1 / b = 1 / 182 Here is (13-7) / 7b = 1 / 182 Why (13-7) / 7b = 1 / 182 The process should be very detailed,
- 10. Compare the fractions n / M and n-a / M-A (m, N, a, are all non-zero natural numbers)
- 11. It is stipulated that an operation on positive integer n, whose rule is: F (n) = 3N + 1 (n is odd) 2n − 1 (n is even), then f (3)=______ ,f[f(1)]=______ .
- 12. What are the number of items and times in a ^ 3-A ^ 2b-b ^ 3, 3N ^ 4-2n ^ 2 + 1?
- 13. If the 2nth power of x = 3, find the value of the fourth power of (- 1 / 3 x to the 3nth power) / [the 2nth power of 4 (X & # 179;)]
- 14. 3 × 9 ^ n × 27 ^ n-1 = 3 x 3 ^ 2n x 3 ^ (3n-3)
- 15. Given 3 ^ m = 2, 3N ^ = 4, find the value of 9 ^ m + 1-2n
- 16. Prove n + (n + 1) + (n + 2)... + 2n = 3N (n + 1) / 2 by induction
- 17. If n is an integer and y = n + 3N ^ 2 + 2n ^ 3, we prove that y is a multiple of 6
- 18. Find sequence 1 + 1, 1A + 4, 1A2 + 7, 1A3 + 10 ,1an-1+(3n-2),… The sum of the first n terms of
- 19. If Sn = 2n ^ 2 + 3n-4, then an=____
- 20. An = 3N ^ 2-2n + 1 for Sn =?