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A026381 T(n,n-2), where T is the array in A026374. 2
1, 4, 11, 17, 30, 39, 58, 70, 95, 110, 141, 159, 196, 217, 260, 284, 333, 360, 415, 445, 506, 539, 606, 642, 715, 754, 833, 875, 960, 1005, 1096, 1144, 1241, 1292, 1395, 1449, 1558, 1615, 1730, 1790, 1911, 1974, 2101, 2167, 2300 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 2..1000

FORMULA

G.f.: z^2*(1+3z+5z^2)/[(1-z)^3*(1+z)^2]. - Emeric Deutsch, Jan 25 2004

PROG

(Haskell)

a026381 = flip a026374 2  -- Reinhard Zumkeller, Feb 22 2014

CROSSREFS

Sequence in context: A160907 A003146 A063237 * A063556 A133725 A050395

Adjacent sequences:  A026378 A026379 A026380 * A026382 A026383 A026384

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified September 23 09:03 EDT 2020. Contains 337298 sequences. (Running on oeis4.)