A185773 - OEIS

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A185773

Number of (n+1)X4 0..2 arrays with no 2X2 subblock sum equal to any horizontal or vertical neighbor 2X2 subblock sum

3844, 89118, 2046098, 48744342, 1154712762, 27239862108, 641595944400, 15156754839024, 357869357090800, 8446854770875602, 199334639825139922, 4705555692884330894, 111074885127703334276, 2621814014876365014966

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 3 of A185777

LINKS

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

EXAMPLE

Some solutions for 3X4

..2..1..0..2....2..1..1..1....2..2..0..1....1..1..2..2....0..0..0..1

..1..1..0..2....2..0..0..1....2..0..0..2....0..1..1..1....0..1..2..1

..0..0..2..1....1..1..2..2....0..2..1..2....0..1..1..2....1..2..2..0