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A235845 Number of (n+1)X(3+1) 0..3 arrays with the upper median unequal to the lower median in every 2X2 subblock 1
16228, 1133608, 80556656, 5778908484, 415698469568, 29937676955084, 2156857770093828, 155414194184061336, 11199079002464581764, 807017035004418681844, 58154884407935003132880, 4190741598855907942838336 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A235849

LINKS

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

R. H. Hardin, Empirical recurrence of order 55

FORMULA

Empirical recurrence of order 55 (see link above)

EXAMPLE

Some solutions for n=1

..1..2..0..1....3..2..2..3....0..0..0..1....3..0..2..0....3..3..3..2

..1..2..0..1....0..0..1..3....3..2..2..0....1..0..2..1....1..1..0..1

CROSSREFS

Sequence in context: A031624 A035921 A278607 * A254163 A254170 A254452

Adjacent sequences:  A235842 A235843 A235844 * A235846 A235847 A235848

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 16 2014

STATUS

approved

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Last modified November 27 12:37 EST 2021. Contains 349394 sequences. (Running on oeis4.)