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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A135224 A103451 * A007318 * A000012. 1
1, 3, 1, 5, 3, 1, 9, 7, 4, 1, 17, 15, 11, 5, 1, 33, 31, 26, 16, 6, 1, 65, 63, 57, 42, 22, 7, 1, 129, 127, 120, 99, 64, 29, 8, 1, 257, 255, 247, 219, 163, 93, 37, 9, 1, 513, 511, 502, 466, 382, 256, 130, 46, 10, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row sums = A132750: (1, 4, 9, 21, 49, 113,...). Left border = A083318: (1, 3, 5, 9, 17, 33,...).

LINKS

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

FORMULA

A103451 * A007318 * A000012 as infinite lower triangular matrices.

EXAMPLE

First few rows of the triangle are:

1;

3, 1;

5, 3, 1;

9, 7, 4, 1;

17, 15, 11, 5, 1;

33, 31, 26, 16, 6, 1;

65, 63, 57, 42, 22, 7, 1;

...

CROSSREFS

Cf. A132750, A083318, A103451.

Sequence in context: A117563 A060439 A206283 * A209578 A268829 A249100

Adjacent sequences:  A135221 A135222 A135223 * A135225 A135226 A135227

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson, Nov 23 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 November 13 23:48 EST 2019. Contains 329106 sequences. (Running on oeis4.)