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Search: id:A027621
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A027621 n + (n+1)^2 + (n+2)^3 + (n+3)^4. +0
3
90, 288, 700, 1440, 2646, 4480, 7128, 10800, 15730, 22176, 30420, 40768, 53550, 69120, 87856, 110160, 136458, 167200, 202860, 243936, 290950, 344448, 405000, 473200, 549666, 635040, 729988, 835200, 951390, 1079296, 1219680 (list; graph; listen)
OFFSET

0,1

LINKS

P. De Geest, Palindromic Quasi_Under_Squares of the form n+(n+1)^2

FORMULA

O.g.f.: -16/(-1+x)-24/(-1+x)^5+16/(-1+x)^2-16/(-1+x)^3+18/(-1+x)^4 . - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Feb 22 2008

PROGRAM

sage: [i+(i+1)^2+(i+2)^3+(i+3)^4 for i in xrange(0, 36)] - Zerinvary Lajos (zerinvarylajos(AT)yahoo.com), Jul 03 2008

CROSSREFS

Sequence in context: A044422 A044803 A074213 this_sequence A157888 A158490 A066116

Adjacent sequences: A027618 A027619 A027620 this_sequence A027622 A027623 A027624

KEYWORD

nonn

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com)

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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