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!)
A236279 Number of (n+1)X(2+1) 0..2 arrays with 2X2 subblock sum of squares lexicographically nondecreasing rowwise and columnwise 1
432, 5805, 87450, 901317, 9293996, 73777097, 583531732, 3814287681, 24858329516, 139836395921, 784874890619, 3914363002363, 19489759979307, 88019540187885, 397033923060013, 1649563318118096, 6847455887807999, 26493023678026609 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 2 of A236282
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1....0..2..0....0..2..1....1..2..2....1..1..2....1..0..1....1..1..1
..1..1..1....0..2..1....0..0..1....1..0..2....0..1..1....0..2..0....1..0..2
..2..1..2....2..2..1....1..2..2....2..2..0....2..0..1....0..1..1....2..0..1
..0..2..0....2..2..2....1..0..1....2..1..1....0..1..2....2..2..2....1..1..2
CROSSREFS
Sequence in context: A235422 A234405 A234400 * A223595 A223436 A230922
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 21 2014
STATUS
approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 21 04:54 EDT 2024. Contains 371850 sequences. (Running on oeis4.)