Hello! I'm trying to generate a sequence in Excel and would appreciate your help. In Column A, we have generations from 1,2,3,... and in Column B, we have the number of rabbit pairs increasing at each generation. Beginning at P(5), I've found a pattern where we find [P_n-1 + P_n-3] + 1 then [P_n-1 + P_n-3] - 1, repeating. I've calculated the sequence by hand to G(11):

Generation	1	2	3	4	5	6	7	8	9	10	11
Number of Rabbit Pairs	1	1	2	3	5	6	10	14	21	30	45

I need to know at what generation the population of rabbit pairs reaches 100,000. Because this is a variation on a Fibinacci sequence, please assume that the rabbits never die, and please also assume that the sequence started here is correct (again, this is a variation on Fibonacci). If you could provide the formula and work for Excel, it would be most appreciated. Thank you!