A222097 Number of n X n 0..5 arrays with entries increasing mod 6 by 0, 1, 2 or 3 rightwards and downwards, starting with upper left zero

1, 46, 17694, 57455502, 1579646506770, 368159933254055152, 727800879295716577956574

Offset

1,2

Comments

Diagonal of A222104

Links

Table of n, a(n) for n=1..7.

Example

Some solutions for n=3
..0..3..4....0..1..4....0..1..3....0..3..4....0..1..4....0..0..3....0..2..4
..0..3..5....1..2..5....2..3..5....1..4..5....1..4..5....1..3..3....0..3..4
..2..5..5....2..5..0....5..0..2....3..5..5....2..4..5....4..5..5....0..0..0

Crossrefs

Sequence in context: A159380 A134793 A177639 * A152501 A209474 A336439

Adjacent sequences: A222094 A222095 A222096 * A222098 A222099 A222100

Keyword

nonn

Author

R. H. Hardin Feb 07 2013

Status

approved