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A236448 Number of (n+1)X(4+1) 0..3 arrays colored with the difference of the maximum and minimum in each 2X2 subblock 1
136208, 3081484, 66621676, 1449135596, 33053505704, 776197082280, 18067929385444, 417098720716876, 9663226837691844, 225960164895003720, 5256657839271798652, 121842108056681368004, 2828540664921269026932 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A236451

LINKS

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

EXAMPLE

Some solutions for n=1

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

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

CROSSREFS

Sequence in context: A023341 A172887 A330399 * A232143 A237470 A254386

Adjacent sequences:  A236445 A236446 A236447 * A236449 A236450 A236451

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 26 2014

STATUS

approved

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Last modified September 24 23:43 EDT 2022. Contains 356951 sequences. (Running on oeis4.)