OFFSET
1,1
LINKS
R. H. Hardin, Table of n, a(n) for n = 1..418
EXAMPLE
Table starts
......126........441.........1785...........7225.............27880
......441.......2401........14161..........83521............485809
.....1785......14161.......127449........1147041...........9967797
.....7225......83521......1147041.......15752961.........204518601
....27880.....485809......9967797......204518601........4005967518
...107584....2825761.....86620249.....2655237841.......78466093924
...422136...16475481....761992011....35242177441.....1562067102398
..1656369...96059601...6703188129...467758877041....31096917284521
..6459453..559842921..58683373353..6151258109929...615218671150193
.25190361.3262808641.513746331121.80892053988001.12171431974069369
...
Some solutions for n=2 k=3
..1..0..0..1..1....0..0..1..1..1....0..1..1..1..1....1..1..0..0..1
..1..1..0..0..1....1..0..0..1..1....0..1..1..1..1....1..1..1..0..0
..0..1..1..1..0....1..1..1..1..0....1..0..1..1..0....0..1..1..1..0
..0..0..1..1..1....0..1..1..1..0....1..1..1..0..1....1..1..1..1..1
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
R. H. Hardin, Dec 19 2011
STATUS
approved