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A238308 Number of (n+1)X(3+1) 0..3 arrays with the maximum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one 1
12372, 227622, 4124382, 73547936, 1325192097, 23867403810, 431525615512, 7754964008116, 140102741116287, 2519445217835664, 45526526723208179, 818530641216657186, 14790136479124024049, 265931224012975513088 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A238311

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A234919 A183693 A096618 * A179916 A236426 A235841

Adjacent sequences:  A238305 A238306 A238307 * A238309 A238310 A238311

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 24 2014

STATUS

approved

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Last modified September 25 10:05 EDT 2020. Contains 337337 sequences. (Running on oeis4.)