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A038797
T(n+4,n), array T as in A038792.
2
1, 6, 23, 73, 211, 581, 1560, 4135, 10890, 28590, 74946, 196326, 514123, 1346148, 3524441, 9227311, 24157645, 63245795, 165579930, 433494205, 1134902916, 2971214796, 7778741748, 20365010748, 53316290821, 139583862066, 365435295755, 956722025605, 2504730781495
OFFSET
0,2
FORMULA
G.f.: 1/((1 - 3*x + x^2)*(1 - x)^3). [Maksym Voznyy (voznyy(AT)mail.ru), Aug 14 2009]
MATHEMATICA
CoefficientList[Series[1/((1-3*x+x^2)*(1-x)^3), {x, 0, 28}], x] (* Stefano Spezia, Apr 24 2023 *)
CROSSREFS
Apparently the same as A038737.
Cf. A038792.
Sequence in context: A273386 A045618 A038737 * A136530 A259033 A374856
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, May 02 2000
EXTENSIONS
Definition corrected by R. J. Mathar, Sep 16 2009
STATUS
approved