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A229431 Number of n X n 0..6 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(n+1) 0..2 array 0
7, 1213, 2985887, 74760946845, 15371734909895599, 26247877098036804502973 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Diagonal of A229437

LINKS

Table of n, a(n) for n=1..6.

EXAMPLE

Some solutions for n=2

..4..0....3..2....1..2....3..0....3..4....5..3....0..2....4..3....1..4....3..2

..3..0....4..1....0..2....4..4....5..6....2..3....1..3....0..0....5..6....5..4

CROSSREFS

Sequence in context: A203871 A144927 A202133 * A159994 A278178 A190266

Adjacent sequences:  A229428 A229429 A229430 * A229432 A229433 A229434

KEYWORD

nonn

AUTHOR

R. H. Hardin Sep 23 2013

STATUS

approved

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Last modified May 25 04:50 EDT 2019. Contains 323539 sequences. (Running on oeis4.)