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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A154053 Number of planar triangular n X n X n nonnegative integer grids with every similarly oriented 5 X 5 X 5 subtriangle summing to 5. 0
11628, 79753, 235290, 356994, 326326, 194107, 148269, 45493, 15037, 5541, 2529, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511, 2511 (list; graph; refs; listen; history; internal format)
OFFSET

5,1

COMMENTS

Value 2511 starts at n=16 and continues through at least n=49.

EXAMPLE

Maximal zeros solution for n=16

.................0

................0.0

...............0.0.2

..............0.2.0.0

.............1.0.0.0.0

............1.0.0.0.1.0

...........0.0.0.1.0.1.0

..........0.0.0.1.1.0.0.0

.........0.0.2.0.0.0.0.0.2

........0.2.0.0.0.0.0.2.0.0

.......1.0.0.0.0.1.1.0.0.0.0

......1.0.0.0.1.0.1.0.0.0.1.0

.....0.0.0.1.0.1.0.0.0.1.0.1.0

....0.0.0.1.1.0.0.0.0.1.1.0.0.0

...0.0.2.0.0.0.0.0.2.0.0.0.0.0.2

..0.2.0.0.0.0.0.2.0.0.0.0.0.2.0.0

CROSSREFS

Sequence in context: A203387 A162865 A049051 * A151600 A203821 A015630

Adjacent sequences:  A154050 A154051 A154052 * A154054 A154055 A154056

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net) Jan 04 2009

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Puzzles | Hot | Classics
Recent Additions | More pages | Superseeker | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified February 16 14:03 EST 2012. Contains 205924 sequences.