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 A007469 Shifts left 2 places under Stirling2 transform. (Formerly M1498) 4
 1, 1, 1, 2, 5, 16, 66, 343, 2167, 16193, 140919, 1414947, 16258868, 211935996, 3105828560, 50748310068, 918138961643, 18287966027343, 399145502051200, 9505803743367971, 246064556796896554, 6897674469134480653, 208651954748397405264, 6788671409470892058148 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 REFERENCES N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence). LINKS Alois P. Heinz, Table of n, a(n) for n = 1..150 M. Bernstein and N. J. A. Sloane, Some canonical sequences of integers, Linear Alg. Applications, 226-228 (1995), 57-72; erratum 320 (2000), 210. [Link to arXiv version] M. Bernstein and N. J. A. Sloane, Some canonical sequences of integers, Linear Alg. Applications, 226-228 (1995), 57-72; erratum 320 (2000), 210. [Link to Lin. Alg. Applic. version together with omitted figures] N. J. A. Sloane, Transforms MAPLE stirtr:= proc(p)            proc(n) add(p(k)*Stirling2(n, k), k=0..n) end          end: a:= proc(n) option remember; `if`(n<3, 1, aa(n-2)) end: aa:= stirtr(a): seq(a(n), n=1..25);  # Alois P. Heinz, Jun 22 2012 MATHEMATICA stirtr[p_] := Function[{n}, Sum[p[k]*StirlingS2[n, k], {k, 0, n}]]; a[n_] := a[n] = If[n<3, 1, aa[n-2]]; aa = stirtr[a]; Table[a[n], {n, 1, 24}] (* Jean-François Alcover, Jan 09 2013, translated from Alois P. Heinz's Maple program *) CROSSREFS Sequence in context: A268170 A000522 A182290 * A306026 A091139 A084785 Adjacent sequences:  A007466 A007467 A007468 * A007470 A007471 A007472 KEYWORD nonn,nice,eigen AUTHOR STATUS approved

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Last modified October 29 18:49 EDT 2020. Contains 338067 sequences. (Running on oeis4.)