

A178306


a(0)=1, a(1)=a(2)=1 and a(3k) = a(k), a(3k+1) = a(k)+a(k+1), a(3k+2) = 2a(k) for k >= 1.


0



0, 1, 1, 1, 2, 2, 1, 2, 2, 1, 3, 2, 2, 4, 4, 2, 3, 4, 1, 3, 2, 2, 4, 4, 2, 3, 4, 1, 4, 2, 3, 5, 6, 2, 4, 4, 2, 6, 4, 4, 8, 8, 4, 6, 8, 2, 5, 4, 3, 7, 6, 4, 5, 8, 1, 4, 2, 3, 5, 6, 2, 4, 4, 2, 6, 4, 4, 8, 8, 4, 6, 8, 2, 5, 4, 3, 7, 6, 4, 5, 8, 1, 5, 2, 4, 6, 8, 2, 5, 4, 3, 8, 6, 5, 11, 10, 6, 8, 12, 2, 6, 4, 4, 8
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OFFSET

0,5


LINKS



MATHEMATICA

a[0] = 0; a[1] = 1; a[2] = 1;
a[n_] := a[n] = If[Mod[ n, 3] == 0, a[Floor[n/3]], If[Mod[n, 3] == 1, a[Floor[(n  1)/3]] + a[Floor[(n + 2)/3]], a[Floor[(n  2)/3]] + a[Floor[n/3]]]];
Table[a[n], {n, 0, 200}]


CROSSREFS



KEYWORD

nonn,easy


AUTHOR



EXTENSIONS

Definition simplified, Mma notation replaced  The Assoc. Eds. of the OEIS, Jul 20 2010


STATUS

approved



