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A353608
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Product_{n>=1} (1 + a(n)*x^n/n!) = 1 + sinh(x).
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9
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1, 0, 1, -4, 21, -126, 1023, -8240, 84745, -864370, 10925883, -133566808, 1994183205, -28455880012, 489891177051, -8112780640000, 158096182329585, -2911196026492074, 64115697136312563, -1328879415116924744, 31920276313015362525, -728711636884140292372
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OFFSET
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1,4
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LINKS
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MATHEMATICA
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nn = 22; f[x_] := Product[(1 + a[n] x^n/n!), {n, 1, nn}]; sol = SolveAlways[0 == Series[f[x] - 1 - Sinh[x], {x, 0, nn}], x]; Table[a[n], {n, 1, nn}] /. sol // Flatten
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CROSSREFS
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KEYWORD
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sign
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AUTHOR
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STATUS
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approved
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