In Easy Sequences 85, we define the hyperprimorial of n, as a exponent ladder of primes numbers from the n-th prime down to first prime (2). OEIS, however, defines hyperprimorial differently. In OEIS sequence #A076265, the hyperprimorial of n, (
) defined as follows:
where:
is the i-th prime number.
Using the above formula, we want to calculate
, which is the sum of all hyperprimorials from 1 to n:
For example:
Since this will involve large integers, please output a vector containing first 6, last 6, and the number of digits of
. Therefore, the final function output should be:
.
Solution Stats
Solution Comments
Show comments
Loading...
Problem Recent Solvers4
Suggested Problems
-
Swap the first and last columns
23001 Solvers
-
Find the peak 3n+1 sequence value
2571 Solvers
-
24061 Solvers
-
Check if number exists in vector
14309 Solvers
-
Replace all zeros and NaNs in a matrix with the string 'error'
104 Solvers
More from this Author116
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!