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A121871 Triangle read by rows: see DeTemple et al. reference for definition. 1
1, 2, -2, 11, -12, 2, 52, -70, 20, -2, 269, -392, 150, -28, 2, 1414, -2186, 1000, -262, 36, -2 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..21.

D. DeTemple and M. Hudelson, Square-banded polygons and affine regularity, Amer. Math. Monthly, 108 (No. 2, 2001), 100-114.

EXAMPLE

Triangle begins:

1

2 -2

11 -12 2

52 -70 20 -2

269 -392 150 -28 2

CROSSREFS

Leading diagonal is A026933.

Sequence in context: A265530 A126806 A279197 * A194638 A235606 A175202

Adjacent sequences:  A121868 A121869 A121870 * A121872 A121873 A121874

KEYWORD

sign,tabl,more

AUTHOR

N. J. A. Sloane, Sep 05 2006

STATUS

approved

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Last modified May 24 06:53 EDT 2019. Contains 323529 sequences. (Running on oeis4.)