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A234229 Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant stress 1X1 tilings) 1
5260, 57912, 635904, 7024396, 77499592, 859364784, 9519608332, 106004400596, 1179099470276, 13187924142144, 147315983416148, 1655281003229696, 18571590872945184, 209665693338667564, 2362943030591289236 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A234233

LINKS

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

R. H. Hardin, Empirical recurrence of order 40

FORMULA

Empirical recurrence of order 40 (see link above)

EXAMPLE

Some solutions for n=2

..0..4..6....3..4..3....7..4..7....5..0..7....2..1..2....6..5..3....7..6..7

..2..3..2....1..5..7....6..6..6....5..3..7....4..6..4....0..2..3....5..1..5

..1..5..1....3..4..3....7..4..7....5..0..7....0..5..0....2..7..5....4..3..4

CROSSREFS

Sequence in context: A256745 A206165 A206379 * A143936 A204281 A251901

Adjacent sequences:  A234226 A234227 A234228 * A234230 A234231 A234232

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 21 2013

STATUS

approved

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Last modified October 19 23:51 EDT 2021. Contains 348095 sequences. (Running on oeis4.)