login
A270260
Number of 5X5X5 triangular 0..n arrays with some element plus some adjacent element totalling n exactly once.
1
0, 3612, 3280968, 308256072, 12712991544, 233617868244, 2749271140656, 22371873866256, 139822582266000, 711923728070220, 3052254429614520, 11503596191487192, 38443036761706248, 117645141262704132
OFFSET
1,2
COMMENTS
Row 5 of A270256.
LINKS
EXAMPLE
Some solutions for n=2
......1..........2..........1..........2..........1..........1..........2
.....2.1........1.2........2.2........2.2........0.0........0.0........2.2
....2.2.2......2.2.2......2.2.2......2.1.2......0.1.0......0.0.0......1.2.2
...2.2.2.1....1.2.2.2....1.2.2.1....2.2.2.1....1.0.0.1....0.1.1.0....2.2.2.2
..2.2.2.2.2..1.2.1.2.2..2.2.1.0.0..2.1.2.2.1..2.1.0.0.0..1.0.0.0.0..2.1.1.2.2
CROSSREFS
Cf. A270256.
Sequence in context: A031558 A045817 A107538 * A106433 A188309 A185495
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 14 2016
STATUS
approved