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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A131817 A051340 + A130321 - A000012. 0
1, 2, 2, 4, 2, 3, 8, 4, 2, 4, 16, 8, 4, 2, 5, 32, 16, 8, 4, 2, 6, 64, 32, 16, 8, 4, 2, 7, 128, 64, 32, 16, 8, 4, 2, 8, 256, 128, 64, 32, 16, 8, 4, 2, 9, 512, 256, 128, 64, 32, 26, 8, 4, 2, 10 (list; table; graph; refs; listen; history; internal format)
OFFSET

0,2

COMMENTS

Row sums = A083706: (1, 4, 9, 18, 35,...).

FORMULA

A051340 + A130321 - A000012 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

2, 2;

4, 2, 3;

8, 4, 2, 4;

16, 8, 4, 2, 5;

32, 16, 8, 4, 2, 6;

64, 32, 16, 8, 4, 2, 7;

...

CROSSREFS

Cf. A051340, A130321, A083706.

Sequence in context: A130860 A161535 A138785 * A138232 A102641 A054763

Adjacent sequences:  A131814 A131815 A131816 * A131818 A131819 A131820

KEYWORD

nonn,tabl,more

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Jul 18 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 16 04:47 EST 2012. Contains 205860 sequences.