Problem 57323. Easy Sequences 84: Digits of Powers of 5

OEIS sequence #A008566, deals with the following series:
This sequence is the digits of powers of 5 listed side by side, that is:
Given a digit d and index n, write a function , that outputs how many times d appears in the sequence segment .
For example, it is clear from the list above that, , and .
HINT: OEIS did not provide a close formula for finding the elements of sequence #A008566. However, this sequence is not without a pattern. For example: except for , the last digit of is always 5, except for , the second last digit of is always 2, except for , the third last digit of is always either 1 or 6, etc... You may need this pattern as the use of big integer class is not required in this problem.

Solution Stats

66.67% Correct | 33.33% Incorrect
Last Solution submitted on Jan 16, 2023

Solution Comments

Show comments

Problem Recent Solvers3

Suggested Problems

More from this Author116

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!