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Search: id:A120186
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| A120186 |
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a(n)=ceiling( sum_{i=1..n-1} a(i)/7), a(1)=1. |
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+0
6
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| 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
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OFFSET
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1,9
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MATHEMATICA
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f[s_] := Append[s, Ceiling[Plus @@ s/7]]; Nest[f, {1}, 64] (* Robert G. Wilson v *)
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CROSSREFS
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Cf. A112088, A072493, A011782, A073941, A072493, A120160, A120170, A120178, A120186, A120194, A120202.
Sequence in context: A112217 A094994 A026839 this_sequence A112210 A018050 A116492
Adjacent sequences: A120183 A120184 A120185 this_sequence A120187 A120188 A120189
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KEYWORD
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nonn
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AUTHOR
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Graeme McRae (g_m(AT)mcraefamily.com), Jun 10 2006
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EXTENSIONS
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Edited and extended by Robert G. Wilson v (rgwv(at)rgwv.com), Jul 07 2006
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