A236808 Number of (n+1)X(7+1) 0..2 arrays with the maximum plus the lower median minus the upper median minus the minimum of every 2X2 subblock equal

330433, 20377961, 1117775361, 86863046591, 5094225962785, 457619414560859, 27385111938746265, 2738509536172477067, 163523882162586207553, 17866672312397065316531, 1056619306386809386800201

Offset

1,1

Comments

Column 7 of A236809

Links

R. H. Hardin, Table of n, a(n) for n = 1..118

Formula

Empirical: a(n) = 146*a(n-1) +8581*a(n-2) -2153126*a(n-3) +36986164*a(n-4) +8566608616*a(n-5) -403792107492*a(n-6) -4627004769288*a(n-7) +614603881718240*a(n-8) -11583617148991360*a(n-9) +50064271774317056*a(n-10) +362780843147264*a(n-11) -383746761879830528*a(n-12) +600909926643662848*a(n-13) +270740030729748480*a(n-14) -1110528281385369600*a(n-15) +583172068737024000*a(n-16)

Example

Some solutions for n=1
..1..0..2..0..1..2..0..2....1..0..2..2..0..0..1..1....1..0..2..1..0..2..1..1
..2..2..1..2..0..2..1..0....1..1..0..1..2..1..1..0....1..1..2..2..2..1..1..0

Crossrefs

Sequence in context: A204602 A299155 A282229 * A259011 A259004 A256902

Adjacent sequences: A236805 A236806 A236807 * A236809 A236810 A236811

Keyword

nonn

Author

R. H. Hardin, Jan 31 2014

Status

approved