login
This site is supported by donations to The OEIS Foundation.
Logo

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A134346 Triangle read by rows: A124929 * A007318. 3
1, 3, 3, 7, 14, 7, 15, 45, 45, 15, 31, 124, 186, 124, 31, 63, 315, 630, 630, 315, 63, 127, 762, 1905, 2540, 1905, 762, 127, 255, 1785, 5355, 8925, 8925, 5355, 1785, 255, 511, 4088, 14308, 28616, 35770, 28616, 14308, 4088, 511 (list; table; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Row sums = A006516: (1, 6, 28, 120, 490,...). Inverse binomial transform of A134346 = A134347A

FORMULA

A124929 * A007318 as infinite lower triangular matrices, where A124929 = (1; 0,3; 0,0,7; 0,0,0,15;...).

EXAMPLE

First few rows of the triangle are:

1;

3, 3;

7, 14, 7;

15, 45, 45, 15;

31, 124, 186, 124, 31;

63, 315, 630, 630, 315, 63;

...

CROSSREFS

Cf. A006516, A124929, A134347.

Sequence in context: A065876 A204858 A095008 * A049772 A119470 A060368

Adjacent sequences:  A134343 A134344 A134345 * A134347 A134348 A134349

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Oct 21 2007

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 14 02:39 EST 2012. Contains 205567 sequences.