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A137594 Triangle read by rows: A007318 * A136717. 2
1, 1, 2, 1, 6, 4, 1, 12, 24, 12, 1, 20, 72, 120, 48, 1, 30, 160, 552, 696, 192, 1, 42, 300, 1752, 4416, 4272, 960, 1, 56, 504, 4452, 17976, 36672, 30480, 5760, 1, 72, 784, 9744, 55776, 195312, 350880, 229680, 34560 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Row sums = A001339: (1, 3, 11, 49, 261,...)

LINKS

Table of n, a(n) for n=0..44.

FORMULA

Binomial transform of A136717

EXAMPLE

First few rows of the triangle are:

1;

1, 2;

1, 6, 4;

1, 12, 24, 12;

1, 20, 72, 120, 48;

1, 30, 160, 552, 696, 192;

1, 42, 300, 1752, 4416, 4272, 960;

...

CROSSREFS

Cf. A136717, A001339.

Sequence in context: A123519 A167024 A114687 * A112360 A250485 A269505

Adjacent sequences:  A137591 A137592 A137593 * A137595 A137596 A137597

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Jan 28 2008

STATUS

approved

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Last modified April 12 12:13 EDT 2021. Contains 342920 sequences. (Running on oeis4.)