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A241308 Number of 3Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest or zero plus the sum of the elements antidiagonally to its northeast, modulo 4 1
11, 6, 37, 74, 186, 646, 1278, 3418, 9113, 21457, 60124, 137479, 352570, 903787, 2152775, 5701225, 13891880, 34569079, 88272180, 217502063, 550658503, 1377693048, 3441000964, 8635401747, 21620210682, 54285004854, 135701054466 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A241306

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..183

EXAMPLE

Some solutions for n=4

..3..2..3..2....3..2..3..2....3..2..3..2....3..2..3..3....3..2..3..2

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

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

CROSSREFS

Sequence in context: A122088 A304053 A190624 * A038320 A010185 A005603

Adjacent sequences:  A241305 A241306 A241307 * A241309 A241310 A241311

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 18 2014

STATUS

approved

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Last modified October 18 12:18 EDT 2019. Contains 328160 sequences. (Running on oeis4.)