A222339 Number of nX6 0..6 arrays with no entry increasing mod 7 by 6 rightwards or downwards, starting with upper left zero

7776, 171774906, 3794659477146, 83827445649884946, 1851823828949372226486, 40908457493732914322944536, 903704698269024081953765683446, 19963651325646523604122389122602956

Offset

1,1

Comments

Column 6 of A222340

Links

R. H. Hardin, Table of n, a(n) for n = 1..13

Example

Some solutions for n=3
..0..0..0..4..4..4....0..0..0..2..6..0....0..0..0..0..4..1....0..0..0..0..3..0
..0..0..0..0..2..4....0..0..0..0..0..1....0..0..0..0..5..6....0..0..0..0..1..5
..0..0..0..0..2..2....0..0..0..0..0..4....0..0..0..0..5..1....0..0..0..0..3..6

Crossrefs

Sequence in context: A017465 A017597 A223361 * A043520 A276144 A234032

Adjacent sequences: A222336 A222337 A222338 * A222340 A222341 A222342

Keyword

nonn

Author

R. H. Hardin Feb 15 2013

Status

approved