A258956 Number of (n+3)X(7+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum

169347520, 44522440, 18461564, 6869922, 2456098, 1416722, 918188, 890370, 811958, 1035056, 1196160, 1600718, 2566134, 4124988, 6608642, 11948670, 21543478, 41323796, 77825118, 150708442, 291396336, 575053846, 1132458216

Offset

1,1

Comments

Column 7 of A258957

Links

R. H. Hardin, Table of n, a(n) for n = 1..41

Example

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

Crossrefs

Cf. A258957

Sequence in context: A172784 A250934 A233606 * A096536 A104331 A233598

Adjacent sequences: A258953 A258954 A258955 * A258957 A258958 A258959

Keyword

nonn

Author

R. H. Hardin, Jun 15 2015

Status

approved