A258952 Number of (n+3)X(3+3) 0..1 arrays with no 4x4 subblock diagonal sum not equal the antidiagonal sum

357600, 605904, 1188294, 2292662, 4268548, 8889408, 18461564, 38504536, 81927058, 175124024, 382949392, 840384096, 1854763390, 4145247490, 9298939358, 21035251042, 47859954190, 109376397754, 251699350766, 581573274808

Offset

1,1

Comments

Column 3 of A258957

Links

R. H. Hardin, Table of n, a(n) for n = 1..173

Example

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

Crossrefs

Cf. A258957

Sequence in context: A238382 A236945 A237486 * A251456 A254566 A151619

Adjacent sequences: A258949 A258950 A258951 * A258953 A258954 A258955

Keyword

nonn

Author

R. H. Hardin, Jun 15 2015

Status

approved