The OEIS mourns the passing of
Jim Simons
and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
login
The OEIS is supported by
the many generous donors to the OEIS Foundation
.
Hints
(Greetings from
The On-Line Encyclopedia of Integer Sequences
!)
A153556
Number of planar n X n X n binary triangular grids with no more than 2 ones in any similarly oriented 4 X 4 X 4 subtriangle.
0
1, 2, 7, 22, 56, 314, 2550, 24293, 250951, 3887949, 82407385, 2243004307, 76766225602, 3520427296494, 214433571928555, 17089012661741075, 1773800463147318841, 242243488411952546357
(
list
;
graph
;
refs
;
listen
;
history
;
text
;
internal format
)
OFFSET
0,2
LINKS
Table of n, a(n) for n=0..17.
CROSSREFS
Sequence in context:
A153536
A153564
A153527
*
A323228
A348290
A099132
Adjacent sequences:
A153553
A153554
A153555
*
A153557
A153558
A153559
KEYWORD
nonn
AUTHOR
R. H. Hardin
, Jan 01 2009
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 May 23 09:59 EDT 2024. Contains 372760 sequences. (Running on oeis4.)
