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 A129186 Right shift operator generating 1's in shifted spaces. 20
 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 (list; table; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS Let A129186 = M, then M*V, V a vector; shifts V to the right, appending 1's to the shifted spaces. Example: M*V, V = [1,2,3,...] = [1,1,2,3,...]. Triangle T(n,k), read by rows, given by (1, -1, 0, 0, 0, 0, 0, 0, 0, ...) DELTA (0, 1, 0, 0, 0, 0, 0, 0, 0, ...) where DELTA is the operator defined in A084938. - Philippe Deléham, Dec 08 2011 LINKS FORMULA Infinite lower triangular matrix with (1,0,0,...) in the main diagonal and (1,1,1...) in the subdiagonal. G.f.: (1-(y-1)*x)/(1-y*x). - Philippe Deléham, Dec 08 2011 EXAMPLE First few rows of the triangle are: 1; 1, 0; 0, 1, 0; 0, 0, 1, 0; 0, 0, 0, 1, 0; ... CROSSREFS Cf. A000012 (row sums), A071919, A129184, A129185. Sequence in context: A302052 A039985 A127239 * A095901 A087049 A186447 Adjacent sequences:  A129183 A129184 A129185 * A129187 A129188 A129189 KEYWORD nonn,easy,tabl AUTHOR Gary W. Adamson, Apr 01 2007 STATUS approved

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Last modified January 21 19:37 EST 2019. Contains 319350 sequences. (Running on oeis4.)