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1, 4, 23, 122, 621, 3120, 15619, 78118, 390617, 1953116, 9765615, 48828114, 244140613, 1220703112, 6103515611, 30517578110, 152587890609, 762939453108, 3814697265607, 19073486328106, 95367431640605
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Vincenzo Librandi, Table of n, a(n) for n = 0..300
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FORMULA
| a(n) = +7*a(n-1) -11*a(n-2) +5*a(n-3).
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MAPLE
| g:=1/(1-5*z): gser:=series(g, z=0, 43): seq(coeff(gser, z, n)-n, n=0..31); # [From Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jan 09 2009]
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PROG
| (MAGMA) [5^n-n: n in [0..35]]; /7 Vincenzo Librandi, Jun 12 2011
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CROSSREFS
| Sequence in context: A201350 A015532 A144465 * A193808 A038723 A091640
Adjacent sequences: A024047 A024048 A024049 * A024051 A024052 A024053
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KEYWORD
| nonn,easy
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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