A183851 Number of (n+1)X7 0..3 arrays with each element of every 2X2 subblock being the sum mod 4 of two others

9650, 136894, 1846987, 31362526, 515409762, 9808052813, 181527680767, 3637653147102, 71400670236377, 1460353019415072, 29473951514959991, 607704516654872749, 12431600718178381761, 257173291746012588265

Offset

1,1

Comments

Column 6 of A183854

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

Some solutions for 3X7
..2..2..2..0..0..0..2....1..3..2..3..3..3..3....2..3..1..1..1..3..2
..0..0..0..2..2..2..0....2..1..1..1..2..1..2....1..1..2..3..2..1..1
..2..2..2..0..0..0..2....3..3..2..3..1..3..1....2..3..3..1..1..3..2

Crossrefs

Sequence in context: A031627 A252128 A237674 * A238036 A204351 A204344

Adjacent sequences: A183848 A183849 A183850 * A183852 A183853 A183854

Keyword

nonn

Author

R. H. Hardin Jan 07 2011

Status

approved