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 A145973 Triangle read by rows, square of A053121 3
 1, 0, 1, 2, 0, 1, 0, 4, 0, 1, 7, 0, 6, 0, 1, 0, 18, 0, 8, 0, 1, 29, 0, 33, 0, 10, 0, 1, 0, 86, 0, 52, 0, 12, 0, 1, 131, 0, 179, 0, 75, 0, 14, 0, 1, 0, 427, 0, 316, 0, 102, 0, 16, 0, 1, 625, 0, 972, 0, 505, 0, 133, 0, 18, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS Left border = aerated version of A007852. LINKS FORMULA Triangle read by rows, A053121^2. EXAMPLE First few rows of the triangle = 1; 0, 1; 2, 0, 1; 0, 4, 0, 1; 7, 0, 6, 0, 1; 0, 18, 0, 8, 0, 1; 29, 0, 33, 0, 10, 0, 1; 0, 86, 0, 52, 0, 12, 0, 1; 131, 0, 179, 0, 75, 0, 14, 0, 1; 0, 427, 0, 316, 0, 102, 0, 16, 0, 1; 625, 0, 972, 0, 505, 0, 133, 0, 18, 0, 1; ... MAPLE A145973 := proc(n, k)     add(A053121(n, j)*A053121(j, k), j=k..n) ; end proc: # R. J. Mathar, Mar 03 2013 CROSSREFS A053121, Cf. A007852, A145974 (row sums) Sequence in context: A131321 A111959 A110109 * A155761 A067631 A134317 Adjacent sequences:  A145970 A145971 A145972 * A145974 A145975 A145976 KEYWORD nonn,tabl AUTHOR Gary W. Adamson & Roger L. Bagula, Oct 25 2008 STATUS approved

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Last modified September 28 13:24 EDT 2020. Contains 337393 sequences. (Running on oeis4.)