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Can you create the FibonaciN(n, N) function? See the template (Prime 7) in attach!
Are you looking for something like this:
Thanks, Werner!
See Fine Fibonacci Numbers
3, 7, 11, 21, 39, 71, 131 - OEIS
The Queen of Spades (opera) - Wikipedia
Yes, these are well know generalizations of Fibonacci
Extension to negative integers
https://en.wikipedia.org/wiki/Generalizations_of_Fibonacci_numbers#Extension_to_negative_integers
as well of summing up more than two successive numbers - they are called Tribonacci numbers, etc.
https://en.wikipedia.org/wiki/Generalizations_of_Fibonacci_numbers#Tribonacci_numbers
