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A160483 Second right hand column of the Beta triangle A160480 2
-11, 36, -85, 166, -287, 456, -681, 970, -1331, 1772, -2301, 2926, -3655, 4496, -5457, 6546, -7771, 9140, -10661, 12342, -14191, 16216, -18425, 20826, -23427, 26236, -29261, 32510, -35991, 39712, -43681, 47906, -52395, 57156 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..34.

FORMULA

a(n) = (-1)^(n)*(2*n+1)^2 - a(n-1) for n = 2, 3, .. , with a(1) = -11.

CROSSREFS

A160480 is the Beta triangle.

A160484 is the third right hand column.

Sequence in context: A015246 A093500 A081438 * A034309 A005000 A006505

Adjacent sequences:  A160480 A160481 A160482 * A160484 A160485 A160486

KEYWORD

easy,sign

AUTHOR

Johannes W. Meijer, May 24 2009

STATUS

approved

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Last modified February 23 16:19 EST 2020. Contains 332176 sequences. (Running on oeis4.)