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A258957 T(n,k) = Number of (n+3) X (k+3) 0..1 arrays with no 4 X 4 subblock diagonal sum not equal the antidiagonal sum. 9
17920, 80000, 80000, 357600, 213920, 357600, 1645856, 605904, 605904, 1645856, 7668960, 1724976, 1188294, 1724976, 7668960, 35887648, 4964896, 2292662, 2292662, 4964896, 35887648, 169347520, 14867112, 4268548, 2864828, 4268548 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......17920......80000....357600..1645856.7668960.35887648.169347520.803828768

.......80000.....213920....605904..1724976.4964896.14867112..44522440.134384448

......357600.....605904...1188294..2292662.4268548..8889408..18461564..38504536

.....1645856....1724976...2292662..2864828.3415506..4910670...6869922...9782192

.....7668960....4964896...4268548..3415506.2618602..2593544...2456098...2490028

....35887648...14867112...8889408..4910670.2593544..1910774...1416722...1288390

...169347520...44522440..18461564..6869922.2456098..1416722....918188....890370

...803828768..134384448..38504536..9782192.2490028..1288390....890370....973994

..3829693280..410930808..81927058.14339074.2643922..1218684....811958....881974

.18318594784.1260815840.175124024.21420810.3075602..1472988...1035056...1143938

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..362

FORMULA

Empirical for column k:

k=1: [linear recurrence of order 23]

EXAMPLE

Some solutions for n=1, k=4

..0..0..0..0..0..0..0....0..0..0..0..0..0..1....0..0..0..0..0..0..0

..1..1..1..1..1..0..0....0..1..1..0..1..0..1....1..0..0..1..1..0..0

..1..1..0..0..1..0..0....1..1..1..0..1..1..0....1..0..0..1..1..1..0

..0..0..1..1..0..0..1....1..1..0..1..1..0..1....1..1..1..1..1..1..0

CROSSREFS

Sequence in context: A250078 A165106 A205661 * A258950 A258949 A205950

Adjacent sequences:  A258954 A258955 A258956 * A258958 A258959 A258960

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin, Jun 15 2015

STATUS

approved

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Last modified October 5 06:51 EDT 2022. Contains 357252 sequences. (Running on oeis4.)