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 A268074 Number of n X n nonnegative integer arrays with new values introduced in each row and column in sequential order starting with zero. 0
 1, 2, 18, 1094, 637358, 4617638834, 517992936833258, 1088597786720842334698, 50735031335891092927048172910, 60946941227979732761779089927221771422 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Diagonal of A268079. LINKS EXAMPLE Some solutions for n=4 ..0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0....0..0..0..0 ..0..0..0..0....0..0..1..1....0..1..0..0....0..1..0..0....0..1..0..0 ..0..0..0..0....0..1..0..1....0..0..1..1....0..0..0..1....0..1..0..1 ..0..1..0..0....0..1..1..2....0..1..0..0....0..0..0..0....0..1..1..0 CROSSREFS Cf. A268079. Sequence in context: A334553 A013040 A268051 * A202544 A203421 A139111 Adjacent sequences:  A268071 A268072 A268073 * A268075 A268076 A268077 KEYWORD nonn AUTHOR R. H. Hardin, Jan 25 2016 STATUS approved

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Last modified August 19 18:30 EDT 2022. Contains 356229 sequences. (Running on oeis4.)