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A235003 Number of (n+1)X(2+1) 0..7 arrays with every 2X2 subblock having its diagonal sum differing from its antidiagonal sum by 2, with no adjacent elements equal (constant stress tilted 1X1 tilings) 1
1946, 14182, 114796, 1049470, 10000516, 98790336, 988422984, 9992949442, 101510004806, 1035354643932, 10588460621818, 108550039660252, 1115075627451580, 11476028691627948, 118307818963681254 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A235007

LINKS

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

R. H. Hardin, Empirical recurrence of order 70

FORMULA

Empirical recurrence of order 70 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A269039 A300199 A252151 * A223464 A252062 A251843

Adjacent sequences:  A235000 A235001 A235002 * A235004 A235005 A235006

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 02 2014

STATUS

approved

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Last modified July 11 01:51 EDT 2020. Contains 335600 sequences. (Running on oeis4.)