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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A128151 A002260 * A097806. 0
1, 3, 2, 3, 5, 3, 3, 5, 7, 4, 3, 5, 7, 9, 5, 3, 5, 7, 9, 11, 6, 3, 5, 7, 9, 11, 13, 7, 3, 5, 7, 9, 11, 13, 15, 8, 3, 5, 7, 9, 11, 13, 15, 17, 9, 3, 5, 7, 9, 11, 13, 15, 17, 19, 10 (list; table; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

Row sums = A028387: (1, 5, 11, 19, 29, 41,...)

FORMULA

A002260 * A097806 as infinite lower triangular matrices. a(1) = 1; n-th row has (n-1) terms in the sequence (3, 5, 7, 9,...) followed by "n".

EXAMPLE

First few rows of the triangle are:

1;

3, 2;

3, 5, 3;

3, 5, 7, 4;

3, 5, 7, 9, 5;

...

CROSSREFS

Cf. A002260, A097806, A028387.

Sequence in context: A029618 A112427 A098229 * A071166 A140358 A130727

Adjacent sequences:  A128148 A128149 A128150 * A128152 A128153 A128154

KEYWORD

nonn,tabl

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Feb 16 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 12:38 EST 2012. Contains 206021 sequences.