Problem 2580. Sum of series VI
What is the sum of the following sequence:
Σk⋅k! for k=1...n
for different n?
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1 Comment
goc3
on 13 Jun 2017
Additional test cases have been added.
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Number Manipulation II
- 15 Problems
- 47 Finishers
- Mysterious digits operation (easy)
- Big numbers, repeated least significant digits
- Bit calculation
- Power Times (of the day)
- Equation Times (of the day)
- Consecutive Equation Times (of the day)
- Find out the Gray Code for a Given Binary Number
- Convert to Binary Coded Decimal
- Binary Neighbourhood
- Digital Neighbourhood
- There are 10 types of people in the world
- Big numbers, least significant digits
- Big numbers, repeated least significant digits
- De-primed
- Evened up (or not)
- With apologies to William Blake
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