OFFSET
1,1
COMMENTS
Table starts
.11..15..19..27..35..51..67..99.131.195.259.387.515.771.1027.1539.2051.3075
.15..19..23..31..39..55..71.103.135.199.263.391.519.775.1031.1543.2055.3079
.19..23..27..35..43..59..75.107.139.203.267.395.523.779.1035.1547.2059.3083
.27..31..35..43..51..67..83.115.147.211.275.403.531.787.1043.1555.2067.3091
.35..39..43..51..59..75..91.123.155.219.283.411.539.795.1051.1563.2075.3099
.51..55..59..67..75..91.107.139.171.235.299.427.555.811.1067.1579.2091.3115
.67..71..75..83..91.107.123.155.187.251.315.443.571.827.1083.1595.2107.3131
.99.103.107.115.123.139.155.187.219.283.347.475.603.859.1115.1627.2139.3163
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..1512
FORMULA
Empirical for rows and columns: a(n) = a(n-1) +2*a(n-2) -2*a(n-3)
T(n,k)=z(n)+z(k)-5 where z(x)=3*2^(x/2+1) if x is even, z(x)=2^((x-1)/2+3) if x is odd
EXAMPLE
Some solutions for n=4 k=4
..2..0..2..1..2....0..1..0..1..0....1..0..1..0..1....2..1..2..1..2
..0..1..0..2..0....2..0..2..0..2....0..2..0..2..0....0..2..0..2..0
..2..0..2..1..2....1..2..1..2..1....2..1..2..1..2....1..0..1..0..1
..0..1..0..2..0....2..0..2..0..2....0..2..0..2..0....0..2..0..2..0
..2..0..2..1..2....0..1..0..1..0....2..1..2..1..2....2..1..2..1..2
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin Mar 14 2012
STATUS
approved