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A023552
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Convolution of natural numbers >= 3 and Fibonacci numbers.
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0
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3, 7, 15, 28, 50, 86, 145, 241, 397, 650, 1060, 1724, 2799, 4539, 7355, 11912, 19286, 31218, 50525, 81765, 132313, 214102, 346440, 560568, 907035, 1467631, 2374695, 3842356, 6217082
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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FORMULA
| G.f.: [x(3-2x)]/[(1-x-x^2)(1-x)^2]. - Ralf Stephan, Apr 28 2004
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MATHEMATICA
| a=b=0; Table[c=b+a+n; a=b; b=c, {n, 3, 60}] (*From Vladimir Joseph Stephan Orlovsky, Jan 28 2011*)
LinearRecurrence[{3, -2, -1, 1}, {3, 7, 15, 28}, 40] (* or *) Rest[ CoefficientList[Series[(x(3-2x))/((1-x-x^2)(1-x)^2), {x, 0, 40}], x]] (* From Harvey P. Dale, Apr 24 2011 *)
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CROSSREFS
| Sequence in context: A101498 A027965 A130145 * A009859 A182640 A192960
Adjacent sequences: A023549 A023550 A023551 * A023553 A023554 A023555
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KEYWORD
| nonn
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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