id:A030119 - OEIS Search Results

Search: id:A030119

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a(n) = a(n-1) + a(n-2) + n

+0
1

1, 1, 4, 8, 16, 29, 51, 87, 146, 242, 398, 651, 1061, 1725, 2800, 4540, 7356, 11913, 19287, 31219, 50526, 81766, 132314, 214103, 346441, 560569, 907036, 1467632, 2374696, 3842357, 6217083, 10059471, 16276586, 26336090, 42612710, 68948835 (list; graph; listen)

	OFFSET	`0,3`
	FORMULA	`Periodic mod 6.` `G.f. [1-2x+3x^2-x^3]/[(1-x-x^2)(1-x)^2].` `Lucas(n+2) + Fibonacci(n+1) - (n+3).`
	CROSSREFS	`Sequence in context: A050856 A128441 A009861 this_sequence A034451 A099992 A053163` `Adjacent sequences: A030116 A030117 A030118 this_sequence A030120 A030121 A030122`
	KEYWORD	`nonn,easy`
	AUTHOR	`Dragan Stevanovic (dragance(AT)ban.junis.ni.ac.yu)`
	EXTENSIONS	`Description corrected and sequence extended by Erich Friedman (erich.friedman(AT)stetson.edu).`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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