A120181 a(1)=4; a(n)=floor((27+sum(a(1) to a(n-1)))/6).

4, 5, 6, 7, 8, 9, 11, 12, 14, 17, 20, 23, 27, 31, 36, 42, 49, 58, 67, 78, 91, 107, 124, 145, 169, 197, 230, 269, 313, 366, 427, 498, 581, 678, 791, 922, 1076, 1255, 1465, 1709

Offset

1,1

Links

Harvey P. Dale, Table of n, a(n) for n = 1..1000

Mathematica

nxt[{t_, a_}]:=Module[{c=Floor[(27+t)/6]}, {t+c, c}]; NestList[nxt, {4, 4}, 40][[All, 2]] (* Harvey P. Dale, Nov 08 2022 *)

Crossrefs

Cf. A073941, A112088, A072493.

Sequence in context: A214420 A173888 A341051 * A016070 A299536 A321025

Adjacent sequences: A120178 A120179 A120180 * A120182 A120183 A120184

Keyword

nonn

Author

Graeme McRae, Jun 10 2006

Status

approved