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A128021 a(n) = A128020(n)/n. 1
1, 1, 2, 3, 5, 8, 14, 25, 44, 79, 144, 264, 487, 905, 1689, 3167, 5962, 11261, 21337, 40540, 77219, 147418, 282017, 540533, 1037823, 1995814, 3843790, 7413023, 14314803, 27675286, 53565070, 103782323, 201274808, 390709922, 759093562 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..35.

FORMULA

a(n) = 1 + floor(sum{k=1 to n-1} A128020(k) /n).

MATHEMATICA

f[l_List] := Block[{n = Length[l] + 1}, Append[l, (1 + Floor[Sum[k*l[[k]], {k, n - 1}]/n])]]; Nest[f, {}, 37] (*Chandler*)

CROSSREFS

Cf. A128020.

Sequence in context: A104882 A091956 A107480 * A036241 A192633 A125028

Adjacent sequences:  A128018 A128019 A128020 * A128022 A128023 A128024

KEYWORD

easy,nonn

AUTHOR

Leroy Quet, Feb 11 2007

EXTENSIONS

Extended by Ray Chandler, Feb 12 2007

STATUS

approved

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Last modified July 23 22:49 EDT 2019. Contains 325278 sequences. (Running on oeis4.)