A251973 Number of (n+1)X(7+1) 0..3 arrays with nondecreasing sum of every two consecutive values in every row and column.

1500625, 294122500, 57648010000, 4067643585600, 287012931399936, 10332465530397696, 371968759094317056, 8266815890892066816, 183725765411866546176, 2835563471280083174400, 43763160717460467360000

Offset

1,1

Comments

Column 7 of A251974

Links

R. H. Hardin, Table of n, a(n) for n = 1..18

Example

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

Crossrefs

Sequence in context: A335289 A228761 A206060 * A236499 A210018 A254173

Adjacent sequences: A251970 A251971 A251972 * A251974 A251975 A251976

Keyword

nonn

Author

R. H. Hardin, Dec 12 2014

Status

approved