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 A144182 Eigentriangle, row sums = A144181 3
 1, 0, 1, 2, 0, 2, 4, 2, 0, 3, -4, 4, 2, 0, 9, 0, -4, 4, 6, 0, 11, -8, 0, -4, 12, 18, 0, 17, -16, -8, 0, -12, 36, 22, 0, 35, 16, -16, -8, 0, -36, 44, 34, 0, 57, 0, 16, -16, -24, 0, -44, 68, 70, 0, 91, 32, 0, 16, -48, -72, 0, -68, 140, 114, 0, 161 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,4 COMMENTS Row sums = A144181: (1, 1, 3, 9, 11, 17, 35,...). Left border = A118434: (1, 0, 2, 4, -4, 0, -8,...); (i.e. row sums of the self-inverse triangle A118433). Triangle A144183 = partial sums starting from the right of A144182. Sum of n-th row terms = rightmost term of next row. LINKS FORMULA Triangle read by rows, T(n,k) = A118434(n-k)*A144181(k-1); where A144181(k-1) = A144181 shifted to (1, 1, 1, 3, 9, 11, 17, 35, 57, 91, 161,...). EXAMPLE First few rows of the triangle are: 1; 0, 1; 2, 0, 1; 4, 2, 0, 3; -4, 4, 2, 0, 9; 0, -4, 4, 6, 0, 11; -8, 0, -4, 12, 18, 0, 17; -16, -8, 0, -12, 36, 22, 0, 35; ... row 3 = (4, 2, 0, 3) = termwise products of (4, 2, 0, 1) and (1, 1, 1, 3) = (4*1, 2*1, 0*1, 1*3). CROSSREFS A144181, Cf. A118434, A144183 Sequence in context: A120557 A092594 A092741 * A037036 A055947 A015910 Adjacent sequences:  A144179 A144180 A144181 * A144183 A144184 A144185 KEYWORD tabl,sign AUTHOR Gary W. Adamson, Sep 13 2008 STATUS approved

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Last modified June 7 05:20 EDT 2020. Contains 334837 sequences. (Running on oeis4.)