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A017426 (11n+3)^2. 0
9, 196, 625, 1296, 2209, 3364, 4761, 6400, 8281, 10404, 12769, 15376, 18225, 21316, 24649, 28224, 32041, 36100, 40401, 44944, 49729, 54756, 60025, 65536, 71289, 77284, 83521, 90000, 96721, 103684 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Table of n, a(n) for n=0..29.

Index entries for linear recurrences with constant coefficients, signature (3, -3, 1).

FORMULA

a(0)=9, a(1)=196, a(2)=625, a(n)=3*a(n-1)-3*a(n-2)+a(n-3). - Harvey P. Dale, Nov 02 2013

MATHEMATICA

(11Range[0, 30]+3)^2 (* or *) LinearRecurrence[{3, -3, 1}, {9, 196, 625}, 30] (* Harvey P. Dale, Nov 02 2013 *)

PROG

(PARI) a(n)=(11*n+3)^2 \\ Charles R Greathouse IV, Jun 17 2017

CROSSREFS

Sequence in context: A279132 A334777 A081020 * A244506 A274269 A250401

Adjacent sequences:  A017423 A017424 A017425 * A017427 A017428 A017429

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified September 25 13:01 EDT 2020. Contains 337344 sequences. (Running on oeis4.)