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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 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..79.

CROSSREFS

Cf. A160902.

Sequence in context: A024695 A259195 A143997 * A124229 A055377 A157524

Adjacent sequences:  A160900 A160901 A160902 * A160904 A160905 A160906

KEYWORD

nonn,tabl

AUTHOR

Leroy Quet, May 29 2009

EXTENSIONS

Extended by Ray Chandler, Jun 14 2009

STATUS

approved

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Last modified December 13 06:26 EST 2019. Contains 329968 sequences. (Running on oeis4.)