How to matrix exponentiate exponention relation??

Правка en1, от Secret.Codes, 2017-07-27 18:27:34

I have a solution of a problem as, h(n) = 26*h(n-1) + 26^(n-3) — h(n-3). n<=10^9.

how to create matrix on this relation?? Is it possible ?? If not how to solve it??

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en1 Английский Secret.Codes 2017-07-27 18:27:34 226 Initial revision (published)