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 A181348 Denominators of lower triangular matrix T:=log(F), with the matrix F:=A037027 (Fibonacci convolution matrix). 2
 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 1, 3, 3, 2, 1, 1, 1, 15, 3, 1, 1, 1, 1, 1, 30, 15, 1, 3, 2, 1, 1, 1, 70, 15, 5, 3, 3, 1, 1, 1, 1, 105, 35, 10, 15, 3, 1, 2, 1, 1, 1, 7, 105, 70, 15, 3, 1, 3, 1, 1, 1, 1, 105, 7, 35, 35, 6, 5, 3, 3, 2, 1, 1, 1, 385, 105, 7, 105, 14, 5, 15, 3, 1, 1, 1, 1, 1, 3465 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,7 COMMENTS The triangle of the numerators is given by A181347. See the comments given in A181347. LINKS Wolfdieter Lang, A181347/A181348, Logarithm of the Fibonacci matrix A037027 FORMULA a(n,m) = denominator((log F)(n,m)), with the Fibonacci lower triangular matrix F=A037027. EXAMPLE The triangle starts with the rows[1]; [1,1]; [1,1,1]; [2,1,1,1]; [3,1,1,1,1]; ... The rational triangle T (with main diagonal elements 0) starts with the rows [0]; [1, 0]; [1, 2, 0]; [-1/2, 2, 3, 0]; [-1/3, -1, 3, 4, 0];... CROSSREFS Cf. A037027, A181347. Sequence in context: A175597 A309400 A294306 * A107682 A178239 A260534 Adjacent sequences:  A181345 A181346 A181347 * A181349 A181350 A181351 KEYWORD nonn,easy,tabl AUTHOR Wolfdieter Lang, Oct 15 2010 STATUS approved

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Last modified September 23 12:43 EDT 2021. Contains 347617 sequences. (Running on oeis4.)