Generate Negafibonacci

Generates a sequence of numbers based on the Fibonacci recurrence relation, extending the pattern into negative indices. The tool calculates terms that follow the standard Fibonacci rule but utilize negative starting points for the sequence. Users input a desired range or specific parameters to determine which negative-indexed values are required, allowing them to observe how the sequence continues backward from the traditional initial positive numbers (0, 1, 1, 2...). Students and researchers studying number theory find this utility useful for visualizing mathematical sequences beyond their typical defined limits. It provides a straightforward method for determining terms in the extended Fibonacci set without requiring manual calculation or complex algebraic formulas.