A101352 Partial sums of A101351.

0, 2, 6, 15, 33, 69, 140, 280, 556, 1101, 2179, 4315, 8554, 16978, 33738, 67115, 133637, 266305, 531032, 1059500, 2114840, 4222937, 8434951, 16852215, 33675798, 67305254, 134535510, 268949655, 537702921, 1075088061, 2149661924

Offset

0,2

Links

Table of n, a(n) for n=0..30.

Index entries for linear recurrences with constant coefficients, signature (5,-8,3,3,-2)

Formula

Fib(n+2) + 2^(n+1) - n - 3. - Ralf Stephan, May 16 2007

G.f.:x*(x^2-4*x+2)/((2*x-1)*(x^2+x-1)*(x-1)^2) [From Maksym Voznyy (voznyy(AT)mail.ru), Aug 14 2009]

Crossrefs

Sequence in context: A258348 A262151 A246320 * A192980 A281970 A221719

Adjacent sequences: A101349 A101350 A101351 * A101353 A101354 A101355

Keyword

nonn,easy

Author

Jorge Coveiro, Dec 25 2004

Status

approved