[e2] Fibonacci, Tribonacci, Tetranacci Sequence Calculator

The script is a simple calculator to obtain numbers of Fibonacci, Tribonacci or Tetranacci Sequence.

The script contain calculations for constants (up to 16 digits) that could be used as one of the sequence's number.
The Calculator has 3 modes. Users can define the numbers to initialize the sequence in the options:

 - The Fibonacci Sequence is the series of numbers, every next number is found by adding up the two numbers before it.

Pine Script®

 
 - The Tribonacci Sequence is the series of numbers, every next number is found by adding up the three numbers before it.

Pine Script®

 - The Tetranacci Sequence is the series of numbers, every next number is found by adding up the four numbers before it.

Pine Script®

The Calculator can return a single number or a set of numbers based on the selected sequence mode.
The script is made for other scripts integration rather than stand-alone usage.