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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A118042 Column 1 of triangle A118040, which is the matrix square of triangle A118032; also equals a bisection of A118034, which is column 1 of A118032. 4
1, 4, 14, 44, 130, 364, 990, 2540, 6514, 15640, 38434, 87940, 209166, 460224, 1063818, 2266576, 5105788, 10573476, 23296326, 47097284, 101395460, 200414252, 424162586, 823203108, 1705499044, 3248816636, 6647515550, 12492112904 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..27.

CROSSREFS

Cf. A118034; A118040 (triangle), A118041 (column 0), A118043 (column 2); A118044 (row sums); related triangles: A118032, A118045.

Sequence in context: A057223 A007466 A062109 * A006645 A094309 A000300

Adjacent sequences:  A118039 A118040 A118041 * A118043 A118044 A118045

KEYWORD

nonn

AUTHOR

Paul D. Hanna, Apr 10 2006

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 September 21 22:00 EDT 2019. Contains 327283 sequences. (Running on oeis4.)