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A234477 Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant stress 1X1 tilings) 1
7840, 141728, 2765648, 56172656, 1165600828, 24484032192, 517788509004, 10996717871928, 234081623047024, 4991134242744276, 106505167261928932, 2274481051607364768, 48584502628043230124, 1038273815225245627876 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A234481

LINKS

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

R. H. Hardin, Empirical recurrence of order 46

FORMULA

Empirical recurrence of order 46 (see link above)

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A252317 A250026 A194352 * A286181 A045277 A099498

Adjacent sequences:  A234474 A234475 A234476 * A234478 A234479 A234480

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 26 2013

STATUS

approved

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Last modified May 16 05:56 EDT 2021. Contains 343939 sequences. (Running on oeis4.)