login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A221061 Equals one maps: number of nX5 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..3 nX5 array 2
16, 771, 29939, 1016831, 33166449, 1068217665, 34258980206, 1097126461548, 35117214077059, 1123846885246844, 35963963272764300, 1150849620849480116, 36826998226280362721, 1178454732768007507970, 37710221327188361829083 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A221062

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..36

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A129008 A134183 A042109 * A326216 A194610 A215171

Adjacent sequences:  A221058 A221059 A221060 * A221062 A221063 A221064

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 31 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 January 26 13:09 EST 2022. Contains 350598 sequences. (Running on oeis4.)