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 A080983 Smallest triangular number having n^2 as divisor. 2
 1, 28, 36, 496, 300, 36, 1176, 8128, 3240, 300, 7260, 2016, 14196, 1176, 4950, 130816, 41616, 3240, 64980, 25200, 4851, 7260, 139656, 131328, 195000, 14196, 265356, 270480, 353220, 25200, 461280, 2096128, 29403, 41616, 1225, 738720, 936396 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(n)=A000217(A080982(n)). LINKS Donovan Johnson, Table of n, a(n) for n = 1..5000 MATHEMATICA With[{trnos=Accumulate[Range[2500]]}, Flatten[Table[Select[trnos, Divisible[ #, n^2]&, 1], {n, 40}]]] (* Harvey P. Dale, Jun 01 2014 *) PROG (Haskell) a080983 = a000217 . a080982 -- Reinhard Zumkeller, Mar 23 2013 CROSSREFS Cf. A066561. Sequence in context: A105710 A192226 A323005 * A179105 A096430 A204822 Adjacent sequences: A080980 A080981 A080982 * A080984 A080985 A080986 KEYWORD nonn AUTHOR Reinhard Zumkeller, Feb 26 2003 STATUS approved

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Last modified December 11 07:17 EST 2023. Contains 367717 sequences. (Running on oeis4.)