A253312 Number of (n+1)X(6+1) 0..2 arrays with every 2X2 subblock diagonal maximum minus antidiagonal maximum unequal to its neighbors horizontally, vertically, diagonally and antidiagonally

1051870, 1053094, 8858020, 6728458, 53883500, 45899840, 352580820, 411726542, 2447644466, 4549989670, 21236471054, 58678596194, 237413653504, 831549840050, 3188655033276, 12424082609832, 47046111414124, 191305947190332

Offset

1,1

Comments

Column 6 of A253314

Links

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

Formula

Empirical: a(n) = 54*a(n-2) -1146*a(n-4) +11906*a(n-6) -57856*a(n-8) +41746*a(n-10) +915500*a(n-12) -5390084*a(n-14) +17243019*a(n-16) -23781910*a(n-18) -46626062*a(n-20) +220685238*a(n-22) -966711598*a(n-24) +5598015330*a(n-26) -16564562748*a(n-28) +32437880460*a(n-30) -82319238900*a(n-32) +196803047412*a(n-34) -299792408688*a(n-36) +416972982600*a(n-38) -699879086064*a(n-40) +808469304768*a(n-42) -550998028800*a(n-44) +537665236992*a(n-46) -589908013056*a(n-48) +235092492288*a(n-50) for n>64

Example

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

Crossrefs

Sequence in context: A013968 A036098 A203668 * A253660 A253730 A043679

Adjacent sequences: A253309 A253310 A253311 * A253313 A253314 A253315

Keyword

nonn

Author

R. H. Hardin, Dec 30 2014

Status

approved