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A120186
a(n) = ceiling( Sum_{i=1..n-1} a(i)/7 ), a(1) = 1.
10
1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 4, 4, 5, 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, 20, 23, 27, 30, 35, 40, 45, 52, 59, 68, 77, 88, 101, 115, 132, 151, 172, 197, 225, 257, 294, 336, 384, 439, 501, 573, 655, 748, 855, 977, 1117, 1277, 1459, 1667, 1906, 2178, 2489, 2845
OFFSET
1,9
MATHEMATICA
f[s_] := Append[s, Ceiling[Plus @@ s/7]]; Nest[f, {1}, 64] (* Robert G. Wilson v, Jul 07 2006 *)
KEYWORD
nonn
AUTHOR
Graeme McRae, Jun 10 2006
EXTENSIONS
Edited and extended by Robert G. Wilson v, Jul 07 2006
STATUS
approved