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A162540 (2*n+1)*(2*n+3)*(2*n+5)/3. +0
1
5, 35, 105, 231, 429, 715, 1105, 1615, 2261, 3059, 4025, 5175, 6525, 8091, 9889, 11935, 14245, 16835, 19721, 22919, 26445 (list; graph; listen)
OFFSET

0,1

LINKS

Index entries related to recurrences with constant coefficients

FORMULA

a(n)=A061550(n)/3 = A077415(2*n+3).

a(n)=4*a(n-1)-6*a(n-2)+4*a(n-3)-a(n-4). G.f.: (5+15*x-5*x^2+x^3)/(x-1)^4 - R. J. Mathar, Jul 16 2009

CROSSREFS

Sequence in context: A145920 A153785 A090294 this_sequence A161199 A111877 A053126

Adjacent sequences: A162537 A162538 A162539 this_sequence A162541 A162542 A162543

KEYWORD

nonn,easy

AUTHOR

Jacob Landon (jacoblandon(AT)aol.com), Jul 05 2009

EXTENSIONS

Offset corrected, definition clarified by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 16 2009

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


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