The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A192518 Monotonic ordering of set S generated by these rules:  if x and y are in S then (x+1)(y+1) is in S, and 2 is in S. 2
 2, 9, 30, 93, 100, 282, 303, 310, 849, 912, 933, 940, 961, 1010, 2550, 2739, 2802, 2823, 2830, 2886, 2914, 3033, 3040, 3110, 3131, 7653, 8220, 8409, 8472, 8493, 8500, 8661, 8745, 8773, 8836, 9102, 9123, 9130, 9333, 9340, 9396, 9410, 9424, 9494 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS See A192476. LINKS MATHEMATICA start = {2}; f[x_, y_] := (x + 1) (y + 1) b[z_] :=   Block[{w = z},    Select[Union[      Flatten[AppendTo[w,        Table[f[w[[i]], w[[j]]], {i, 1, Length[w]}, {j, 1, i}]]]], # <       30000 &]]; t = NestList[b, start, 10][[-1]] (* A192518 *) CROSSREFS Cf. A192476. Sequence in context: A261174 A273652 A056283 * A277241 A201164 A289901 Adjacent sequences:  A192515 A192516 A192517 * A192519 A192520 A192521 KEYWORD nonn AUTHOR Clark Kimberling, Jul 03 2011 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 6 19:52 EDT 2020. Contains 336256 sequences. (Running on oeis4.)