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A069477 60n^2 + 180n + 150. 3
390, 750, 1230, 1830, 2550, 3390, 4350, 5430, 6630, 7950, 9390, 10950, 12630, 14430, 16350, 18390, 20550, 22830, 25230, 27750, 30390, 33150, 36030, 39030, 42150, 45390, 48750, 52230, 55830, 59550, 63390, 67350, 71430, 75630, 79950, 84390, 88950, 93630, 98430 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

First differences of A068236, successive differences of (n+1)^5-n^5.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..10000

Index to sequences with linear recurrences with constant coefficients, signature (3,-3,1).

MATHEMATICA

Table[30 (2 n^2 + 6 n + 5), {n, 1, 100}] (* From Vladimir Joseph Stephan Orlovsky, Jun 19 2011 *)

PROG

(MAGMA) [30*(2*n^2 + 6*n + 5): n in [1..40]]; // Vincenzo Librandi, Nov 23 2011

(PARI) a(n)=60*n^2+180*n+150 \\ Charles R Greathouse IV, Nov 23 2011

CROSSREFS

Cf. A101096, A022521, A068236, A069477.

Sequence in context: A052353 A205920 A136153 * A108573 A206653 A202429

Adjacent sequences:  A069474 A069475 A069476 * A069478 A069479 A069480

KEYWORD

nonn,easy

AUTHOR

Eli McGowan (ejmcgowa(AT)mail.lakeheadu.ca), Apr 11 2002

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Last modified February 16 14:37 EST 2012. Contains 205930 sequences.