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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 1
246, 227174, 3143505700, 652338909221254, 2029918047045095062378, 94718862023128717130547100164, 66274496846481126674814895095131607258, 695358043344361374897649988715201403961564673534 (list; graph; refs; listen; history; text; internal format)
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

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Last modified September 19 06:16 EDT 2020. Contains 337177 sequences. (Running on oeis4.)