A051066 Partial sums of A051065.

0, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 9, 10, 10, 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 16, 16, 17, 18, 18, 19, 20, 20, 21, 21, 22, 22, 22, 23, 23, 23, 24, 24, 24, 25, 25, 25, 26, 26, 26, 27, 27, 28, 28, 29, 30, 30, 31, 32, 32, 33, 33, 34, 34

Offset

0,5

References

Letter from Gary W. Adamson concerning Prouhet-Thue-Morse sequence, Nov. 11, 1999.

Links

Table of n, a(n) for n=0..74.

Formula

a(n) = Sum_{k=0..n} A051065(k). - Wesley Ivan Hurt, May 25 2024

Mathematica

Accumulate[Join[{0}, Mod[Accumulate[Table[IntegerExponent[3*n, 3], {n, 1, 100}]], 2]]] (* Amiram Eldar, Jun 02 2025 *)

Crossrefs

Cf. A004128, A051065, A051067.

Sequence in context: A219610 A194161 A394219 * A029159 A029099 A029245

Adjacent sequences: A051063 A051064 A051065 * A051067 A051068 A051069

Keyword

nonn,easy

Author

N. J. A. Sloane and Gary W. Adamson

Extensions

More terms from James Sellers, Dec 11 1999

Status

approved