Logo

Greetings from The On-Line Encyclopedia of Integer Sequences!

Hints

Search: id:A144336
Displaying 1-1 of 1 results found. page 1
     Format: long | short | internal | text      Sort: relevance | references | number      Highlight: on | off
A144336 Triangle read by rows, 2*A144328 - A007318^(-1) +0
2
1, 3, 1, 1, 4, 3, 3, -1, 7, 5, 1, 6, -2, 10, 7, 3, -3, 14, -4, 13, 9, 1, 8, -11, 26, -7, 16, 11, 3, -5, 25, -29, 43, -11, 19, 13, 1, 10, -24, 62, -62, 66, -16, 22, 15, 3, -7, 40, -78, 134, -116, 96, -22, 25, 17 (list; table; graph; listen)
OFFSET

1,2

COMMENT

Row sums = A003682: (1, 4, 8, 14, 22, 32, 44,...).

FORMULA

Twice triangle A144328 minus the inverse of Pascal's triangle.

EXAMPLE

First few rows of the triangle =

1;

3, 1;

1, 4, 3

3, -1, 7, 5;

1, 6, -2, 10, 7;

3, -3, 14, -4, 13, 9;

1, 8, -11, 26, -7, 16, 11;

3, -5, 25, -29, 43, -11, 19, 13;

...

CROSSREFS

A144328, Cf. A003682

Sequence in context: A157076 A049999 A126015 this_sequence A036040 A080575 A077228

Adjacent sequences: A144333 A144334 A144335 this_sequence A144337 A144338 A144339

KEYWORD

tabl,sign

AUTHOR

Gary W. Adamson & Roger L. Bagula (qntmpkt(AT)yahoo.com), Sep 18 2008

page 1

Search completed in 0.002 seconds

Lookup | Welcome | Find friends | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
More pages | Superseeker | Maintained by N. J. A. Sloane (njas@research.att.com)

Last modified November 24 19:42 EST 2009. Contains 167435 sequences.


AT&T Labs Research