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Search: id:A145073
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| A145073 |
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a(n) = [x^(3^n)] Q(x,n)^(n+1) where Q(x,n) = Sum_{k=0..n} (x^(3^k) + x^(2*3^k)) for n>=0. |
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4
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| 1, 2, 7, 44, 325, 3110, 34258, 436304, 6246439, 99637730, 1747851787, 33469239848, 694321125511
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