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A115321
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Triangle read by rows. Let L(m,n) = largest integer such that if each symbol in an m X n array appears at most L(m,n) times, then the array must have a transversal. Values are shown in this order: L(m,n), n>=2, m=2, 3, ..., n-1, n.
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1
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1, 5, 2, 7, 3, 3, 9, 7, 4, 3, 11, 8, 5, 5, 4, 13, 10, 8
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 2,2
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REFERENCES
| S. K. Stein and S. Szabo, The number of distinct symbols in sections of rectangular arrays, Discr. Math., 306 (2006), 254-261.
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EXAMPLE
| Array begins
1
5 2
7 3 3
9 7 4 3
11 8 5 5 4
13 10 8 ...
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CROSSREFS
| See A115320 for transposed array.
Sequence in context: A093591 A132800 A183167 * A127108 A196405 A093606
Adjacent sequences: A115318 A115319 A115320 * A115322 A115323 A115324
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KEYWORD
| nonn,tabl
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Mar 07 2006
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