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A160903
Square array read by antidiagonals: a(m,n) = the largest noncomposite <= m*n.
1
1, 2, 2, 3, 3, 3, 3, 5, 5, 3, 5, 7, 7, 7, 5, 5, 7, 11, 11, 7, 5, 7, 11, 13, 13, 13, 11, 7, 7, 13, 17, 19, 19, 17, 13, 7, 7, 13, 19, 23, 23, 23, 19, 13, 7, 7, 17, 23, 23, 29, 29, 23, 23, 17, 7, 11, 19, 23, 31, 31, 31, 31, 31, 23, 19, 11, 11, 19, 29, 31, 37, 41, 41, 37, 31, 29, 19, 11, 13
OFFSET
1,2
CROSSREFS
Cf. A160902.
Sequence in context: A024695 A259195 A143997 * A124229 A355250 A055377
KEYWORD
nonn,tabl
AUTHOR
Leroy Quet, May 29 2009
EXTENSIONS
Extended by Ray Chandler, Jun 14 2009
STATUS
approved