A251516 Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock summing to 2 3 4 5 6 7 8 9 or 10

246, 227174, 3143505700, 652338909221254, 2029918047045095062378, 94718862023128717130547100164, 66274496846481126674814895095131607258, 695358043344361374897649988715201403961564673534

Offset

1,1

Comments

Diagonal of A251524

Links

R. H. Hardin, Table of n, a(n) for n = 1..9

Example

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

Crossrefs

Sequence in context: A186787 A229478 A289334 * A208188 A177212 A044983

Adjacent sequences: A251513 A251514 A251515 * A251517 A251518 A251519

Keyword

nonn

Author

R. H. Hardin, Dec 03 2014

Status

approved