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A183851 Number of (n+1)X7 0..3 arrays with each element of every 2X2 subblock being the sum mod 4 of two others 1
9650, 136894, 1846987, 31362526, 515409762, 9808052813, 181527680767, 3637653147102, 71400670236377, 1460353019415072, 29473951514959991, 607704516654872749, 12431600718178381761, 257173291746012588265 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A183854
LINKS
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
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 07 2011
STATUS
approved

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Last modified March 28 16:58 EDT 2024. Contains 371254 sequences. (Running on oeis4.)