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

 

Logo

Please make a donation to keep the OEIS running. We are now in our 56th year. In the past year we added 10000 new sequences and reached almost 9000 citations (which often say "discovered thanks to the OEIS").
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A185607 Number of (n+1)X4 0..3 arrays with every 2X2 subblock determinant equal to some horizontal or vertical neighbor 2X2 subblock determinant 1
2366, 172026, 4473352, 173403770, 5539941616, 195867482580, 6595709318618, 227666412255534, 7763071689162734, 266351559937007588, 9110713339567481710, 312120282081615187852, 10684624737086835808560, 365902084298071259519514 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A185609

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..53

EXAMPLE

Some solutions for 3X4

..1..1..0..3....1..2..2..2....3..3..0..2....2..1..2..1....0..2..3..0

..0..0..0..0....0..0..0..0....0..0..0..0....0..0..2..2....0..0..0..0

..3..1..2..0....3..2..1..0....3..2..0..0....0..0..3..3....2..2..0..3

CROSSREFS

Sequence in context: A187238 A247923 A186785 * A068282 A234328 A258520

Adjacent sequences:  A185604 A185605 A185606 * A185608 A185609 A185610

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 31 2011

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 25 11:32 EST 2020. Contains 338623 sequences. (Running on oeis4.)