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A152151 Riordan array [(1-x)exp(x/(1-x)),x] 1
1, 0, 1, 1, 0, 1, 4, 3, 0, 1, 21, 16, 6, 0, 1, 136, 105, 40, 10, 0, 1, 1045, 816, 315, 80, 15, 0, 1, 9276, 7315, 2856, 735, 140, 21, 0, 1, 93289, 74208, 29260, 7616, 1470, 224, 28, 0, 1, 1047376, 839601, 333936, 87780, 17136, 2646, 336, 36 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,7

COMMENTS

First column is essentially A052852.

LINKS

Table of n, a(n) for n=0..52.

EXAMPLE

Triangle begins

1,

0, 1,

1, 0, 1,

4, 3, 0, 1,

21, 16, 6, 0, 1,

136, 105, 40, 10, 0, 1,

1045, 816, 315, 80, 15, 0, 1,

9276, 7315, 2856, 735, 140, 21, 0, 1,

with production matrix which begins

0, 1,

1, 0, 1,

4, 2, 0, 1,

18, 12, 3, 0, 1,

96, 72, 24, 4, 0, 1,

600, 480, 180, 40, 5, 0, 1;

4320, 3600, 1440, 360, 60, 6, 1

with e.g.f. exp(x*t)(t+1/(1-x)^2).

CROSSREFS

Sequence in context: A131106 A298739 A294188 * A152148 A270708 A198261

Adjacent sequences:  A152148 A152149 A152150 * A152152 A152153 A152154

KEYWORD

easy,nonn,tabl

AUTHOR

Paul Barry, Nov 26 2008

STATUS

approved

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Last modified May 26 19:26 EDT 2019. Contains 323597 sequences. (Running on oeis4.)