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 A248973 Table read by rows: row n contains the partial sums of the wrecker ball sequences starting with n, cf. A248939. 4
 0, 1, 1, 2, 3, 2, -2, -2, 3, 5, 5, 4, 7, 8, 6, 8, 5, -4, -20, -28, -45, -52, -70, -76, -69, -48, -42, -52, -79, -124, -150, -196, -221, -268, -292, -292, 5, 9, 11, 10, 13, 11, 3, -12, -19, -35, -41, -58, -63, -55, -33, -26, -35, -61, -105, -130, -175, -199, -245, -268, -267, -241, -241 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS A228474(n) + 1 = length of row n; row n = partial sums of row n in A248939; T(n,A228474(n)) = A248961(n). LINKS Reinhard Zumkeller, Rows n = 0..16 of triangle, flattened Gordon Hamilton, Wrecker Ball Sequences, Video, 2013 FORMULA T(n,0) = n; T(n,k) = T(n,k-1) + A248939(n,k) for k=1..A228474(n). PROG (Haskell) a248973 n k = a248973_tabf !! n !! k a248973_row n = a248973_tabf !! n a248973_tabf = map (scanl1 (+)) a248939_tabf CROSSREFS Cf. A228474 (row lengths - 1), A248961 (right edge). Sequence in context: A185150 A299229 A289496 * A305048 A205717 A304689 Adjacent sequences:  A248970 A248971 A248972 * A248974 A248975 A248976 KEYWORD sign,tabf AUTHOR Reinhard Zumkeller, Oct 20 2014 STATUS approved

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Last modified August 6 10:01 EDT 2020. Contains 336245 sequences. (Running on oeis4.)