**a(n) = 8*a(n-1)-a(n-2); a(0) = 0, a(1) = 1.**

*0, 1, 8, 63, 496, 3905, 30744, 242047, 1905632, 15003009, 118118440, 929944511*

*3 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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