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A323834 A Seidel matrix a(n,k) read by antidiagonals downwards. 2
0, 1, 1, 1, 2, 3, -2, -1, 1, 4, -5, -7, -8, 7, -3, 16, 11, 4, -4, -11, -14, 61, 77, 88, 92, 88, 77, 63, -272, -211, -134, -46, 46, 134, 211, 274 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,5

COMMENTS

The first row is a signed version of the Euler numbers A000111.

Other rows are defined by a(n+1,k) = a(n,k)+a(n,k+1).

LINKS

Table of n, a(n) for n=0..35.

A. Randrianarivony and J. Zeng, Une famille de polynomes qui interpole plusieurs suites..., Adv. Appl. Math. 17 (1996), 1-26. See Section 6.

EXAMPLE

The first few antidiagonals are:

0,

1,1,

1,2,3,

-2,-1,1,4,

-5,-7,-8,7,-3,

16,11,4,-4,-11,-14,

61,77,88,92,88,77,63,

-272,-211,-134,-46,46,134,211,274,

...

For the array itself, see the Randrianarivony and Zeng (1996) article.

CROSSREFS

Cf. A000111, A000657 (next-to-main diagonal), A323833.

Sequence in context: A017838 A181567 A058294 * A082868 A219539 A154556

Adjacent sequences:  A323831 A323832 A323833 * A323835 A323836 A323837

KEYWORD

sign,tabl,more

AUTHOR

N. J. A. Sloane, Feb 03 2019

STATUS

approved

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Last modified August 20 20:50 EDT 2019. Contains 326155 sequences. (Running on oeis4.)