A022861 a(n) = [ a(n-1)/a(1) + a(n-1)/a(2) + ... + a(n-1)/a(n-1) ] for n >= 3.

1, 2, 3, 5, 10, 21, 45, 99, 219, 485, 1076, 2389, 5306, 11786, 26182, 58164, 129215, 287062, 637734, 1416785, 3147520, 6992512, 15534524, 34511410, 76670354, 170330428, 378405125, 840662707, 1867611566, 4149075406

Offset

1,2

Links

Harvey P. Dale, Table of n, a(n) for n = 1..500

Mathematica

nxt[{t_, a_}]:=Module[{c=Floor[Total[a/t]]}, {Join[t, {c}], c}]; Join[ {1, 2}, NestList[ nxt, {{1, 2, 3}, 3}, 30][[All, 2]]] (* Harvey P. Dale, Aug 22 2020 *)

Crossrefs

Sequence in context: A002991 A218532 A352879 * A352818 A346970 A001646

Adjacent sequences: A022858 A022859 A022860 * A022862 A022863 A022864

Keyword

nonn

Author

Clark Kimberling

Status

approved