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s4.2.5

Standard Fibonacci Numbers

1,000 questions

It’s becoming crucial to have at least the first fourteen Fibonacci numbers memorized as they are frequently used in problems. The sequence begins with F1=1,F2=1F_1=1, F_2=1, and each subsequent term is the sum of the two preceding ones.

F1F_1 = 1
F2F_2 = 1
F3F_3 = 2
F4F_4 = 3
F5F_5 = 5
F6F_6 = 8
F7F_7 = 13
F8F_8 = 21
F9F_9 = 34
F10F_{10} = 55
F11F_{11} = 89
F12F_{12} = 144
F13F_{13} = 233
F14F_{14} = 377
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