By analogy with the definition of equal difference and equal ratio sequence, the general term formula and summation formula of equal product sequence are derived from the definition

By analogy with the definition of equal difference and equal ratio sequence, the general term formula and summation formula of equal product sequence are derived from the definition

Starting from the second term, the ratio of the latter to the former is a constant
General term formula: an = A1 * q ^ (n-1)
The summation formula: when q = 1, Sn = Nan: when q is not equal to 1, Sn = A1 (Q ^ n-1) / (Q-1) where n corresponds to the number of sequence, which has nothing to do with others

A1 = 2, an + 1 = 1 / 2-An, find the general term formula

a2=3/2,a3=4/3,.
an=(n+1)/n

1+1+1+1+1+1+11 1+1+1+1+1×0=?

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