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A241394 Number of n X 4 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest or one plus the sum of the elements antidiagonally to its northeast, modulo 4. 1
6, 23, 85, 480, 2780, 17211, 102782, 645484, 3936420, 24633252, 150911826, 941907715, 5783836527, 36025719987, 221566632164, 1377925800191, 8486654284672, 52714390850462, 324976079474744, 2016735929148039, 12443708121368662, 77167572875652387, 476406669588897579 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
EXAMPLE
Some solutions for n=4:
..2..3..3..3....3..2..2..2....2..3..3..2....2..3..3..2....2..3..3..2
..1..3..1..2....1..2..0..0....1..3..2..0....2..1..2..2....1..3..2..0
..1..0..0..3....3..0..0..0....1..0..0..0....3..0..1..2....1..2..0..2
..3..2..2..2....1..2..2..0....3..2..0..2....3..2..0..2....2..3..0..3
CROSSREFS
Column 4 of A241397.
Sequence in context: A027043 A006815 A264690 * A054491 A282710 A295132
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 20 2014
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)