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 A156667 Triangle read by rows, A156663 * (A001045 * 0^(n-k)) 1
 1, 0, 1, 2, 0, 1, 0, 2, 0, 3, 4, 0, 2, 0, 5, 0, 4, 0, 6, 0, 11, 8, 0, 4, 0, 10, 0, 21, 0, 8, 0, 12, 0, 22, 0, 43, 16, 0, 8, 0, 20, 0, 42, 0, 85, 0, 16, 0, 24, 0, 44, 0, 86, 0, 171, 32, 0, 16, 0, 40, 0, 84, 0, 170, 0, 341 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS Row sums = A001045 starting with offset 1: (1, 1, 3, 5, 11, 21, 43,...). As an eigentriangle, row sums = rightmost term of next row. LINKS FORMULA Triangle read by rows, A156663 * (an infinite lower triangular matrix with A001045 as the main diagonal and the rest zeros). EXAMPLE First few rows of the triangle = 1; 0, 1; 2, 0, 1; 0, 2, 0, 3; 4, 0, 2, 0, 5; 0, 4, 0, 6, 0, 11; 8, 0, 4, 0, 10, 0, 21; 0, 8, 0, 12, 0, 22, 0, 43; 16, 0, 8, 0, 20, 0, 42, 0, 85; 0, 16, 0, 24, 0, 44, 0, 86, 0, 171; 32, 0, 16, 0, 40, 0, 84, 0, 170, 0, 341; 0, 32, 0, 48, 0, 88, 0, 172, 0, 342, 0, 683; ... Row 4 = (4, 0, 2, 0, 5) = termwise products of (4, 0, 2, 0, 1) and (1, 1, 1, 3, 5) CROSSREFS Sequence in context: A293575 A054014 A158945 * A178090 A110914 A219200 Adjacent sequences:  A156664 A156665 A156666 * A156668 A156669 A156670 KEYWORD nonn,tabl AUTHOR Gary W. Adamson, Feb 12 2009 STATUS approved

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Last modified December 16 10:58 EST 2018. Contains 318160 sequences. (Running on oeis4.)