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A279010 Alternating Jacobsthal triangle A_3(n,k) read by rows. 2
1, 1, 1, 3, 0, 1, 3, 3, -1, 1, 9, 0, 4, -2, 1, 9, 9, -4, 6, -3, 1, 27, 0, 13, -10, 9, -4, 1, 27, 27, -13, 23, -19, 13, -5, 1, 81, 0, 40, -36, 42, -32, 18, -6, 1, 81, 81, -40, 76, -78, 74, -50, 24, -7, 1, 243, 0, 121, -116, 154, -152, 124, -74, 31, -8, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..65.

Kyu-Hwan Lee, Se-jin Oh, Catalan triangle numbers and binomial coefficients, arXiv:1601.06685 [math.CO], 2016.

EXAMPLE

Triangle begins:

1,

1,1,

3,0,1,

3,3,-1,1,

9,0,4,-2,1,

9,9,-4,6,-3,1,

27,0,13,-10,9,-4,1,

27,27,-13,23,-19,13,-5,1,

81,0,40,-36,42,-32,18,-6,1,

81,81,-40,76,-78,74,-50,24,-7,1,

243,0,121,-116,154,-152,124,-74,31,-8,1,

...

CROSSREFS

If initial column is omitted, this is very like the Rioprdan matrix A191582.

Cf. A112468, A279006, A279009.

Sequence in context: A218603 A207032 A169940 * A121481 A121469 A091867

Adjacent sequences:  A279007 A279008 A279009 * A279011 A279012 A279013

KEYWORD

sign,tabl

AUTHOR

N. J. A. Sloane, Dec 07 2016

STATUS

approved

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Last modified February 23 03:41 EST 2018. Contains 299473 sequences. (Running on oeis4.)