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9, 11, 15, 21, 29, 39, 51, 65, 81, 99, 119, 141, 165, 191, 219, 249, 281, 315, 351, 389, 429, 471, 515, 561, 609, 659, 711, 765, 821, 879, 939, 1001, 1065, 1131, 1199, 1269, 1341, 1415, 1491, 1569, 1649, 1731, 1815, 1901, 1989, 2079, 2171
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| For n>3: a(n) = A176271(n+1,5). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 13 2010]
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LINKS
| P. De Geest, Palindromic Quasi_Over_Squares of the form n^2+(n+X)
Index entries for sequences related to linear recurrences with constant coefficients, signature (3,-3,1).
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FORMULA
| G.f. ( -9+16*x-9*x^2 ) / ( (x-1)^3 ). - R. J. Mathar, Feb 07 2011
a(0) = 9, a(n) = a(n - 1) + 2n. [From Vincenzo Librandi, Feb 07 2011]
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MAPLE
| with (combinat):seq(fibonacci(3, n)+n+8, n=0..46); - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jun 07 2008
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MATHEMATICA
| Table[n^2+n+9, {n, 0, 50}] (* From Harvey P. Dale, Feb 07 2011 *)
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CROSSREFS
| Cf. A002522.
Sequence in context: A113339 A037009 A163096 * A063191 A048464 A075824
Adjacent sequences: A027691 A027692 A027693 * A027695 A027696 A027697
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KEYWORD
| nonn,easy
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com)
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