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 A345988 Smallest oblong number m*(m+1) that is divisible by n. 3
 2, 2, 6, 12, 20, 6, 42, 56, 72, 20, 110, 12, 156, 42, 30, 240, 272, 72, 342, 20, 42, 110, 506, 72, 600, 156, 702, 56, 812, 30, 930, 992, 132, 272, 210, 72, 1332, 342, 156, 240, 1640, 42, 1806, 132, 90, 506, 2162, 240, 2352, 600, 306, 156, 2756, 702, 110, 56, 342, 812, 3422, 240 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Equals A344005(n)*(A344005(n)+1). See A344005 for much more about this problem. LINKS Chai Wah Wu, Table of n, a(n) for n = 1..10000 CROSSREFS Cf. A002378, A344005. Sequence in context: A242882 A157285 A320068 * A275439 A173392 A324128 Adjacent sequences:  A345985 A345986 A345987 * A345989 A345990 A345991 KEYWORD nonn AUTHOR N. J. A. Sloane, Jul 13 2021 STATUS approved

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Last modified December 1 22:12 EST 2021. Contains 349435 sequences. (Running on oeis4.)