A207171 -id:A207171 - cp's OEIS frontend

A208013 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically.

2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 13, 81, 90, 81, 12, 19, 169, 261, 225, 144, 16, 28, 361, 624, 841, 420, 256, 20, 41, 784, 1482, 2304, 1943, 784, 400, 25, 60, 1681, 3808, 6084, 5952, 4489, 1260, 625, 30, 88, 3600, 9512, 18496, 16224, 15376, 8643, 2025, 900, 36, 129

Offset: 1

R. H. Hardin Feb 22 2012

Table starts
..2...4....6.....9....13.....19.....28......41.......60.......88.......129
..4..16...36....81...169....361....784....1681.....3600.....7744.....16641
..6..36...90...261...624...1482...3808....9512....23280....58080....144996
..9..81..225...841..2304...6084..18496...53824...150544...435600...1263376
.12.144..420..1943..5952..16224..55624..181192...545140..1737120...5591900
.16.256..784..4489.15376..43264.167281..609961..1974025..6927424..24750625
.20.400.1260..8643.32860..92560.393049.1578401..5340405.20121640..78251775
.25.625.2025.16641.70225.198025.923521.4084441.14447601.58446025.247401441

			Some solutions for n=4 k=3
..0..1..1....1..0..0....1..0..0....1..0..0....1..0..0....0..0..1....0..1..0
..1..1..0....0..0..1....1..1..0....0..1..0....0..1..1....0..1..0....1..1..0
..0..1..1....1..0..0....1..0..0....1..0..0....1..0..0....0..0..1....0..1..0
..1..0..0....0..0..1....0..1..0....0..1..0....0..0..1....0..1..0....1..0..0

R. H. Hardin, Table of n, a(n) for n = 1..884

Column 1 is A002620(n+2)
Column 2 is A030179(n+2)
Column 3 is A207363
Row 1 is A000930(n+3)
Row 2 is A207170
Row 3 is A207171

cp's OEIS Frontend

A208013 T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 0 1 and 0 1 1 vertically.

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