A189667 Partial sums of A189664.

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

Offset

1,6

Comments

See A189664.

Links

Table of n, a(n) for n=1..82.

Formula

s(n)=[(n+1)/3]-s([(n+1)/3])+s([n/3]), where s(0)=0.

Mathematica

(See A189664.)

Crossrefs

Cf. A189664, A189665, A189666.

Sequence in context: A082429 A047744 A163563 * A196390 A054846 A084520

Adjacent sequences: A189664 A189665 A189666 * A189668 A189669 A189670

Keyword

nonn

Author

Clark Kimberling, Apr 25 2011

Status

approved