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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A134836 Antidiagonals of the array: A007318 * A002260(transform). 1
1, 1, 1, 1, 3, 1, 1, 5, 3, 1, 1, 7, 8, 3, 1, 1, 9, 16, 8, 3, 1, 1, 11, 27, 20, 8, 3, 1, 1, 13, 41, 43, 20, 8, 3, 1, 1, 15, 58, 83, 48, 20, 8, 3, 1, 1, 17, 78, 138, 106, 48, 20, 8, 3, 1, 1, 19, 101, 218, 213, 112, 48, 20, 8, 3, 1 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,5

COMMENTS

Row sums = A001629, starting (1, 2, 5, 10, 20 38, 71, 130,...). Rows tend to A001792 staring from the right: (1, 3, 8, 20, 48, 112,...).

FORMULA

Antidiagonals of the array: A007318 * A002260(transform), where A002260 = (1; 1,2; 1,2,3;...).

EXAMPLE

First few rows of the array are:

1,...1,...1,...1,...1,...1,...;

1,...3,...3,...3,...3,...3,...;

1,...5,...8,...8,...8,...8,...;

1,...7,..16,..20,..20,..20,...;

1,...9,..27,..43,..48,..48,...;

1,..11,..41,..83,.106,.112,...;

...

First few rows of the triangle are:

1;

1, 1;

1, 3, 1;

1, 5, 3, 1;

1, 7, 8, 3, 1;

1, 9, 16, 8, 3, 1;

1, 11, 27, 20, 8, 3, 1;

1, 13, 41, 43, 20, 8, 3, 1;

...

CROSSREFS

Cf. A002260, A001792, A001629.

Sequence in context: A152720 A131247 A114278 * A180955 A191751 A131767

Adjacent sequences:  A134833 A134834 A134835 * A134837 A134838 A134839

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 12 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 17 07:41 EST 2012. Contains 205998 sequences.