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A110658 a(n) = A028242(A028242(A028242(n))). 4
1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 3, 2, 1, 3, 2, 1, 3, 2, 4, 3, 2, 4, 3, 2, 4, 3, 5, 4, 3, 5, 4, 3, 5, 4, 6, 5, 4, 6, 5, 4, 6, 5, 7, 6, 5, 7, 6, 5, 7, 6, 8, 7, 6, 8, 7, 6, 8, 7, 9, 8, 7, 9, 8, 7, 9, 8, 10, 9, 8, 10, 9, 8, 10, 9, 11, 10, 9, 11, 10, 9, 11, 10, 12, 11, 10, 12, 11, 10, 12, 11, 13, 12, 11, 13 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
FORMULA
a(n) = A028242(A110657(n)) = A110657(A028242(n)).
a(n) = floor(n/8) + (4 - (n mod 8) mod 3) mod 3.
G.f.: (x^2-x+1)*(x^6-2*x^4+x^2+1) / ((x-1)^2*(x+1)*(x^2+1)*(x^4+1)). - Colin Barker, Apr 01 2013
MATHEMATICA
A028242[n_] := (1 + 2*n + 3*(-1)^n)/4; Table[A028242[A028242[ A028242[n] ]], {n, 0, 50}] (* G. C. Greubel, Sep 03 2017 *)
CROSSREFS
Cf. A110656.
Sequence in context: A127788 A025656 A194517 * A002188 A128313 A283486
KEYWORD
nonn,easy
AUTHOR
Reinhard Zumkeller, Aug 05 2005
STATUS
approved

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Last modified May 20 11:46 EDT 2024. Contains 372712 sequences. (Running on oeis4.)