The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A297829 Duplicates in A297826. 2
 51, 59, 243, 279, 287, 295, 363, 371, 422, 430, 538, 587, 684, 872, 934, 1075, 1083, 1091, 1232, 1268, 1304, 1312, 1320, 1388, 1396, 1515, 1598, 1634, 1642, 1650, 1718, 1726, 1855, 1891, 1899, 1907, 1975, 1983, 2034, 2042, 2093, 2101, 2209, 2258, 2355, 2363 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..46. MATHEMATICA mex[list_, start_] := (NestWhile[# + 1 &, start, MemberQ[list, #] &]); tbl = {}; a[0] = 1; a[1] = 2; b[0] = 3; b[1] = 4; a[n_] := a[n] = a[1]*b[n - 1] - a[0]*b[n - 2] + n; b[n_] := b[n] = mex[tbl = Join[{a[n], a[n - 1], b[n - 1]}, tbl], b[n - 1]]; du = Differences[Table[a[n], {n, 0, 1000}]] (* A297827 *) w = Flatten[Position[du, 0]]; Map[a, w] (* A297829 *) CROSSREFS Cf. A297826. Sequence in context: A039387 A043210 A043990 * A045068 A050701 A206525 Adjacent sequences: A297826 A297827 A297828 * A297830 A297831 A297832 KEYWORD nonn,easy AUTHOR Clark Kimberling, Feb 04 2018 STATUS approved

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

Last modified May 29 13:10 EDT 2024. Contains 372940 sequences. (Running on oeis4.)