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 A208983 Central terms of the triangle in A208101. 3
 1, 2, 3, 14, 20, 110, 154, 910, 1260, 7752, 10659, 67298, 92092, 592020, 807300, 5259150, 7152444, 47071640, 63882940, 423830264, 574221648, 3834669566, 5188082354, 34834267234, 47073334100, 317506779800, 428634152730, 2902365981900, 3914819231400 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS a(2*n+1) = A126596(n). LINKS Reinhard Zumkeller, Table of n, a(n) for n = 0..1000 MATHEMATICA T[_, 0] = 1; T[n_, 1] := n; T[n_, n_] := T[n - 1, n - 2]; T[n_, k_] /; 1 < k < n := T[n, k] = T[n - 1, k] + T[n - 1, k - 2]; a[n_] := T[2n, n]; Table[a[n], {n, 0, 30}] (* Jean-François Alcover, Feb 03 2018, from A208101 *) PROG (Haskell) a208983 n = a208101 (2 * n) n CROSSREFS Sequence in context: A284928 A294405 A160218 * A337609 A081615 A157903 Adjacent sequences:  A208980 A208981 A208982 * A208984 A208985 A208986 KEYWORD nonn AUTHOR Reinhard Zumkeller, Mar 04 2012 STATUS approved

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Last modified August 10 06:08 EDT 2022. Contains 356029 sequences. (Running on oeis4.)