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 A263220 Number of (n+1)X(4+1) 0..2 arrays with each row and column divisible by 5, read as a base-3 number with top and left being the most significant digits. 1
 7, 343, 12601, 475539, 22342751, 1094138875, 53375395657, 2607171566653, 127682197727311, 6256406902789159, 306545703110117209, 15020102223676251147, 735979598601461106119, 36062999023016301797227 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 4 of A263224. LINKS R. H. Hardin, Table of n, a(n) for n = 1..210 R. H. Hardin, Empirical recurrence of order 89 FORMULA Empirical recurrence of order 89 (see link above) EXAMPLE Some solutions for n=3 ..1..0..2..0..1....2..2..2..0..1....0..1..0..1..0....2..0..2..0..0 ..1..2..2..2..1....0..0..0..1..2....1..2..2..0..2....0..1..0..1..0 ..1..2..1..0..1....0..2..0..0..1....2..1..0..2..0....2..2..2..0..1 ..1..1..0..2..1....1..0..1..1..2....0..2..2..2..2....0..0..0..1..2 CROSSREFS Cf. A263224. Sequence in context: A200967 A068150 A195803 * A145252 A154024 A013712 Adjacent sequences:  A263217 A263218 A263219 * A263221 A263222 A263223 KEYWORD nonn AUTHOR R. H. Hardin, Oct 12 2015 STATUS approved

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Last modified August 11 00:55 EDT 2022. Contains 356046 sequences. (Running on oeis4.)