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 A203532 v(n+1)/v(n), where v=A203530. 3
 10, 168, 3315, 76608, 2661120, 113667840, 4311354600, 178738560000, 11178747740160, 791853627801600, 44783640216315000, 2693449157020876800, 246209683227475968000, 17126298576096297588000, 1253392853589570355200000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MATHEMATICA t = Table[If[PrimeQ[k], 0, k], {k, 1, 100}]; composite = Rest[Rest[Union[t]]]       (* A002808 *) f[j_] := composite[[j]]; z = 20; v[n_] := Product[Product[f[k] + f[j], {j, 1, k - 1}], {k, 2, n}] d[n_] := Product[(i - 1)!, {i, 1, n}]  (* A000178 *) Table[v[n], {n, 1, z}]                 (* A203530 *) Table[v[n + 1]/v[n], {n, 1, z - 1}]    (* A203532 *) Table[v[n]/d[n], {n, 1, 20}]           (* A203533 *) CROSSREFS Cf. A203530, A203532, A002808, A093883, A203419. Sequence in context: A006297 A279292 A099711 * A325911 A246501 A120977 Adjacent sequences:  A203529 A203530 A203531 * A203533 A203534 A203535 KEYWORD nonn AUTHOR Clark Kimberling, Jan 03 2012 STATUS approved

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Last modified May 25 11:07 EDT 2020. Contains 334592 sequences. (Running on oeis4.)