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 A263371 Number of (n+1)X(6+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits. 1
 19, 367, 107514, 27274339, 8491666657, 2535097569590, 787253224440475, 245171742019939573, 76738178529099193548, 24012353212352081646593, 7515855702189389861141905, 2352317017039363043975969464 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Column 6 of A263373. LINKS R. H. Hardin, Table of n, a(n) for n = 1..188 EXAMPLE Some solutions for n=3 ..1..0..0..0..2..0..2....0..0..1..1..1..0..2....0..0..0..2..1..2..1 ..0..0..1..2..0..1..2....1..0..0..1..2..1..0....0..0..1..1..0..1..1 ..0..0..1..1..0..1..1....1..2..0..2..1..1..0....0..2..1..2..0..0..2 ..1..0..2..0..2..2..2....2..1..1..0..1..2..2....0..1..2..1..1..0..0 CROSSREFS Cf. A263373. Sequence in context: A057685 A243399 A041686 * A023283 A075839 A158592 Adjacent sequences:  A263368 A263369 A263370 * A263372 A263373 A263374 KEYWORD nonn AUTHOR R. H. Hardin, Oct 16 2015 STATUS approved

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Last modified December 7 15:24 EST 2021. Contains 349581 sequences. (Running on oeis4.)