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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A271032 Number of nXnXn triangular 0..6 arrays with some element less than a w, nw or ne neighbor exactly once. 0
0, 112, 5040, 188034, 6872424, 255757328, 9790184488, 386105784866, 15669594394610, 653037680536962, 27884254995169022, 1217213333853178756 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A271034.

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=4

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

....0.1......2.2......0.2......1.1......1.1......0.2......1.2......0.0

...1.4.5....2.3.4....0.2.2....2.2.5....3.5.5....2.2.2....1.2.2....0.0.4

..1.2.5.5..5.3.4.4..4.4.4.5..6.6.6.5..2.5.5.5..6.6.6.6..3.3.2.3..4.4.5.4

CROSSREFS

Cf. A271034.

Sequence in context: A304552 A103860 A265660 * A213803 A291214 A035813

Adjacent sequences:  A271029 A271030 A271031 * A271033 A271034 A271035

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 29 2016

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 October 17 21:32 EDT 2019. Contains 328133 sequences. (Running on oeis4.)