login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A130305 A007318 * A130304. 1
1, 2, 1, 3, 3, 1, 4, 6, 4, 1, 6, 10, 10, 5, 1, 12, 16, 20, 15, 6, 1, 28, 28, 36, 35, 21, 7, 1, 64, 56, 64, 71, 56, 28, 8, 1, 136, 120, 120, 135, 127, 84, 36, 9, 1, 272, 256, 240, 255, 262, 211, 120, 45, 10, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = (1, 3, 7, 15,...). Left column = A038504: (1, 2, 3, 4, 6, 12, 28,...). A130306 = A130304 * A007318.

LINKS

Table of n, a(n) for n=1..55.

FORMULA

Binomial transform of A130304.

EXAMPLE

First few rows of the triangle are:

1;

2, 1;

3, 3, 1;

4, 6, 4, 1;

6, 10, 10, 5, 1;

12, 16, 20, 15, 6, 1;

28, 28, 36, 35, 21, 7, 1;

...

CROSSREFS

Cf. A130304, A038504, A130306.

Sequence in context: A126885 A239986 A285548 * A323346 A143328 A192001

Adjacent sequences:  A130302 A130303 A130304 * A130306 A130307 A130308

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, May 20 2007

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified September 17 03:42 EDT 2021. Contains 347478 sequences. (Running on oeis4.)