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 A129185 Shift operator, left. 12
 0, 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, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Let A129185 = M, then M*V (V a vector), shifts V to the left. Example M*V, V = [1, 2, 3, ...] = [2, 3, 4, ...]. A129184 = right shift operator. LINKS Franck Ramaharo, A bracket polynomial for 2-tangle shadows, arXiv:2002.06672 [math.CO], 2020. FORMULA As an infinite matrix, all 1's in the superdiagonal and the rest zeros. EXAMPLE First few rows of the matrix:   0, 1;   0, 0, 1;   0, 0, 0, 1;   0, 0, 0, 0, 1;   ... MATHEMATICA Table[PadLeft[{1}, n, 0], {n, 20}]//Flatten//Rest (* Harvey P. Dale, Jul 11 2020 *) CROSSREFS Cf. A129184, A129186. Sequence in context: A188020 A179828 A129184 * A283683 A118605 A175253 Adjacent sequences:  A129182 A129183 A129184 * A129186 A129187 A129188 KEYWORD nonn,tabf,easy,less AUTHOR Gary W. Adamson, Apr 01 2007 STATUS approved

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Last modified May 17 19:51 EDT 2022. Contains 353778 sequences. (Running on oeis4.)