A203274 Number of n X 5 0..5 arrays with every nonzero element less than or equal to some NW, E or S neighbor.

1, 165993, 525063657, 805342647391, 1126396980640358, 1710751676209296372, 2658493631378011835550, 4082511881983390614103873, 6243679229930017272903596918, 9566736378802482603139943069827

Offset

1,2

Comments

Column 5 of A203277.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Cf. A203277.

Sequence in context: A201051 A233425 A183834 * A061741 A186919 A185803

Adjacent sequences: A203271 A203272 A203273 * A203275 A203276 A203277

Keyword

nonn

Author

R. H. Hardin, Dec 31 2011

Status

approved