A237246 Number of (n+1)X(5+1) 0..2 arrays with the maximum plus the upper median minus the lower median minus the minimum of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one

28176, 477144, 8433384, 163330432, 2917434432, 51846897952, 936224849104, 18672666559360, 339066019397152, 6092798602997504, 111770577368471328, 2280258602003570688, 41947564959167642688, 759810246767623997952

Offset

1,1

Comments

Column 5 of A237249

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Formula

Empirical: a(n) = 601964*a(n-4) -147113300164*a(n-8) +18655117037895360*a(n-12) -1293038821096525341376*a(n-16) +46410219023590225771445760*a(n-20) -674073521525048603011166105600*a(n-24) +411303559317872351216848896000*a(n-28) +21059951299587196983422156800000*a(n-32) +20445970197492715314216960000000*a(n-36) for n>41

Example

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

Crossrefs

Sequence in context: A253746 A253753 A203832 * A281577 A134123 A234087

Adjacent sequences: A237243 A237244 A237245 * A237247 A237248 A237249

Keyword

nonn

Author

R. H. Hardin, Feb 05 2014

Status

approved