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A120181
a(1)=4; a(n)=floor((27+sum(a(1) to a(n-1)))/6).
1
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
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
KEYWORD
nonn
AUTHOR
Graeme McRae, Jun 10 2006
STATUS
approved