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 A240149 Number of nX3 0..3 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of elements above it or one 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
 4, 8, 20, 67, 254, 825, 2667, 8652, 27929, 91436, 297311, 965014, 3135633, 10174603, 33030794, 107154304, 347714014, 1127972498, 3659419980, 11870924983, 38508782933, 124917347816, 405214920992, 1314447547691, 4263837727610 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 3 of A240153 LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 EXAMPLE Some solutions for n=4 ..3..3..2....3..3..2....2..2..3....2..2..3....3..2..3....3..2..3....2..2..3 ..2..1..2....2..1..1....0..2..2....0..2..1....3..2..1....3..1..2....0..2..1 ..0..0..3....0..0..3....0..3..3....2..0..2....2..2..3....2..1..3....2..2..2 ..0..2..1....0..2..2....2..2..3....0..0..2....2..0..1....2..0..2....2..1..1 CROSSREFS Sequence in context: A060919 A009333 A187010 * A086912 A168451 A000585 Adjacent sequences:  A240146 A240147 A240148 * A240150 A240151 A240152 KEYWORD nonn AUTHOR R. H. Hardin, Apr 02 2014 STATUS approved

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Last modified November 23 16:18 EST 2020. Contains 338590 sequences. (Running on oeis4.)