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 A144257 Weight array of A086270. 4
 1, 2, 0, 3, 1, 0, 4, 2, 1, 0, 5, 3, 2, 1, 0, 6, 4, 3, 2, 1, 0, 7, 5, 4, 3, 2, 1, 0, 8, 6, 5, 4, 3, 2, 1, 0, 9, 7, 6, 5, 4, 3, 2, 1, 0, 10, 8, 7, 6, 5, 4, 3, 2, 1, 0, 11, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 12, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 14, 12, 11, 10, 9, 8, 7, 6, 5 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS For the definition of weight array, see A144112. Contribution from Gary W. Adamson, Feb 18 2010: (Start) Identical to an infinite lower triangular matrix with (1,2,3,...) in every column but the leftmost column shifted one row upwards, giving: 1; 2, 0; 3, 1, 0; 4, 2, 1, 0; 5, 3, 2, 1, 0; ... Let the triangle = M. Row sums = A000124; M * [1,2,3,...] = A050407 starting with offset 3: (1, 2, 5, 11, 21, 36,...); and Lim_{n->inf} M^n = the odd indexed Fibonacci numbers, A001519: (1, 2, 5, 13,...). (End) LINKS FORMULA Row 1 = A000027. All subsequent rows are 0 followed by A000027. EXAMPLE Northwest corner: 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 0 1 2 3 4 5 6 7 8 CROSSREFS Cf. A086270. Cf. A000124, A050407, A001519 [From Gary W. Adamson, Feb 18 2010] Sequence in context: A098862 A003988 A185914 * A257232 A208544 A208535 Adjacent sequences:  A144254 A144255 A144256 * A144258 A144259 A144260 KEYWORD nonn,tabl AUTHOR Clark Kimberling, Sep 16 2008 STATUS approved

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