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A082135
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Expansion of xexp(4x)cosh(x).
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4
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0, 1, 8, 51, 304, 1765, 10104, 57239, 321248, 1787337, 9864040, 54035707, 294031632, 1590368429, 8556082136, 45812239455, 244255416256, 1297362967441, 6867617339592, 36243304518083, 190746485895920, 1001394643462773
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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COMMENTS
| Binomial transform of A082134. 4th binomial transform of (0,1,0,3,0,5,0,7,....).
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FORMULA
| a(n)=n(3^(n-1)+5^(n-1))/2 E.g.f. xexp(4x)cosh(x)
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CROSSREFS
| Cf. A082133, A082136.
Sequence in context: A054620 A034516 A069325 * A153594 A037697 A037606
Adjacent sequences: A082132 A082133 A082134 * A082136 A082137 A082138
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KEYWORD
| easy,nonn
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AUTHOR
| Paul Barry (pbarry(AT)wit.ie), Apr 06 2003
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