A270514 Number of 6X6X6 triangular 0..n arrays with some element plus some adjacent element totalling n+1 exactly once.

14220, 47829828, 22383193638, 4560833505432, 332450685760224, 14156156843376732, 342379234166696586, 5782237511907430128, 69687752498560963956, 656635477063987211700, 4977794111482229697390

Offset

1,1

Comments

Row 6 of A270509.

Links

R. H. Hardin, Table of n, a(n) for n = 1..14

Example

Some solutions for n=1
.......1............0............0............1............1............1
......1.0..........0.0..........1.0..........1.0..........0.0..........1.0
.....0.0.1........0.0.0........0.0.0........0.0.0........0.0.1........0.0.0
....0.0.0.0......0.0.0.0......1.0.0.0......0.0.0.0......0.1.0.0......0.0.0.1
...0.1.0.0.0....0.1.0.1.0....0.0.0.0.0....0.0.0.0.0....0.0.0.0.1....0.1.0.0.0
..0.0.0.0.1.0..1.0.1.0.0.1..1.0.0.1.1.0..0.0.0.0.0.1..0.0.0.1.0.1..1.0.0.1.0.0

Crossrefs

Cf. A270509.

Sequence in context: A205202 A205060 A237541 * A186820 A232263 A034232

Adjacent sequences: A270511 A270512 A270513 * A270515 A270516 A270517

Keyword

nonn

Author

R. H. Hardin, Mar 18 2016

Status

approved