A205894 T(n,k) = Number of (n+1)X(k+1) 0..2 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors.

81, 554, 476, 4020, 6020, 2766, 28522, 79644, 61588, 15728, 203346, 1042382, 1476942, 611694, 89630, 1448300, 13544456, 34564494, 26010268, 6120848, 511044, 10317234, 176994692, 804426380, 1076391970, 464115072, 61390466, 2913944

Offset

1,1

Comments

Table starts

.......81........554..........4020............28522.............203346

......476.......6020.........79644..........1042382...........13544456

.....2766......61588.......1476942.........34564494..........804426380

....15728.....611694......26010268.......1076391970........43934005004

....89630....6120848.....464115072......34054078628......2458450081192

...511044...61390466....8325468740....1085248304854....138728411577118

..2913944..614898304..148827007430...34411101807016...7771632134436102

.16611380.6157484270.2659178147340.1090399519549578.435193195671122398

Links

R. H. Hardin, Table of n, a(n) for n = 1..78

Example

Some solutions for n=3 k=3
..0..0..1..1....2..1..0..0....1..1..2..1....0..0..1..1....0..0..2..0
..2..2..1..2....0..2..1..2....1..0..1..2....1..1..2..0....0..2..2..2
..1..1..0..2....1..2..1..0....0..2..1..2....1..2..2..2....1..1..2..2
..1..2..2..2....1..2..2..1....0..2..2..2....1..2..0..0....2..1..2..0

Crossrefs

Column 1 is A205286.

Row 1 is A186528.

Sequence in context: A206505 A235584 A231973 * A186536 A186528 A253294

Adjacent sequences: A205891 A205892 A205893 * A205895 A205896 A205897

Keyword

nonn,tabl

Author

R. H. Hardin, Feb 01 2012

Status

approved