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A127894 Inverse of Riordan array (1/(1-x)^3,x/(1-x)^3). 1
1, -3, 1, 12, -6, 1, -55, 33, -9, 1, 273, -182, 63, -12, 1, -1428, 1020, -408, 102, -15, 1, 7752, -5814, 2565, -760, 150, -18, 1, -43263, 33649, -15939, 5313, -1265, 207, -21, 1, 246675, -197340, 98670 (list; table; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

First column is (-1)^n*A001764(n+1). Row sums are (-1)^n*A006013(n). Inverse of A127893.

EXAMPLE

Triangle begins

1,

-3, 1,

12, -6, 1,

-55, 33, -9, 1,

273, -182, 63, -12, 1,

-1428, 1020, -408, 102, -15, 1,

7752, -5814, 2565, -760, 150, -18, 1,

-43263, 33649, -15939, 5313, -1265, 207, -21, 1,

246675, -197340, 98670, -35880, 9750, -1950, 273, -24, 1,

-1430715, 1170585, -610740, 237510, -71253, 16443, -2842, 348, -27, 1,

8414640, -7012200, 3786588, -1553472, 503440, -129456, 26040, -3968, 432, -30, 1

CROSSREFS

Sequence in context: A177020 A122844 A113369 * A127898 A078938 A135888

Adjacent sequences:  A127891 A127892 A127893 * A127895 A127896 A127897

KEYWORD

sign,tabl

AUTHOR

Paul Barry (pbarry(AT)wit.ie), Feb 04 2007

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Last modified February 17 07:41 EST 2012. Contains 205998 sequences.