login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A203972 Number of nX5 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by 0 1 to the left or above 1
13, 396, 16723, 601521, 22100882, 817293052, 30104480870, 1109867821460, 40918040450898, 1508399380147856, 55608018263653107, 2050003686321969840, 75573742529524147667, 2786045396078461420336, 102708210001323641444431 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A203975

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=3

..0..0..0..0..1....0..1..0..1..0....0..0..0..0..1....0..0..0..0..0

..1..1..1..0..1....0..1..2..0..0....0..1..1..1..0....0..1..2..1..0

..2..0..0..1..2....1..0..0..0..0....1..2..0..0..1....0..0..1..0..1

CROSSREFS

Sequence in context: A302700 A194489 A275651 * A013527 A009010 A171196

Adjacent sequences:  A203969 A203970 A203971 * A203973 A203974 A203975

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 08 2012

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 April 17 05:36 EDT 2021. Contains 343059 sequences. (Running on oeis4.)