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 A104715 Triangle T(n,k) = (2*k-1)*A000217(n-k+1) read by rows, 1<=k<=n. 1
 1, 3, 3, 6, 9, 5, 10, 18, 15, 7, 15, 30, 30, 21, 9, 21, 45, 50, 42, 27, 11, 28, 63, 75, 70, 54, 33, 13, 36, 84, 105, 105, 90, 66, 39, 15, 45, 108, 140, 147, 135, 110, 78, 45, 17, 55, 135, 180, 196, 189, 165, 130, 90, 51, 19, 66, 165 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS EXAMPLE First few rows are: 1; 3, 3; 6, 9, 5; 10, 18, 15, 7; 15, 30, 30, 21, 9; 21, 45, 50, 42, 27, 11; ... CROSSREFS Cf. A002415 (row sums), A104716. Sequence in context: A026804 A240213 A205970 * A164743 A110769 A093445 Adjacent sequences:  A104712 A104713 A104714 * A104716 A104717 A104718 KEYWORD nonn,tabl,easy AUTHOR Gary W. Adamson, Mar 20 2005 EXTENSIONS One term corrected by R. J. Mathar, Oct 29 2011 STATUS approved

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Last modified June 22 16:32 EDT 2021. Contains 345386 sequences. (Running on oeis4.)