A189635 Partial sums of A189632.

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

Offset

1,6

Comments

See A189632.

Links

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

Formula

s(n)=s([(n+2)/3])+[n/3]-s([n/3]), where s(0)=0, s(1)=0.

Mathematica

(See A189632.)

Crossrefs

Cf. A189632, A189633, A189634.

Sequence in context: A320110 A068953 A362960 * A109785 A058224 A131808

Adjacent sequences: A189632 A189633 A189634 * A189636 A189637 A189638

Keyword

nonn

Author

Clark Kimberling, Apr 24 2011

Status

approved