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1, 2, 12, 92, 672, 4652, 31032, 201812, 1288992, 8124572, 50700552, 313968932, 1932641712, 11839990892, 72260648472, 439667406452, 2668522016832, 16163719991612, 97745259402792, 590286253682372, 3560791008422352
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Index to sequences with linear recurrences with constant coefficients, signature (12,-41,30).
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FORMULA
| G.f.: 1/(1-6*x)-1/(1-5*x)+1/(1-x). E.g.f.: e^(6*x)-e^(5*x)+e^x.
a(n)=11*a(n-1)-30*a(n-2)+20 with a(0)=1, a(1)=2 [From Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jul 21 2010]
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CROSSREFS
| Cf. A155624, A155625, A155626, A155627, A155628, A155629, A155630, A155631, A155632, A155633, A155634, A155635, A155636, A155637, A155638
Sequence in context: A121357 A098926 A074610 * A103882 A003123 A052691
Adjacent sequences: A155636 A155637 A155638 * A155640 A155641 A155642
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KEYWORD
| nonn,easy
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AUTHOR
| Mohammad K. Azarian (azarian(AT)evansville.edu), Jan 30 2009
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