A189631 Partial sums of A189628.

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

Offset

1,6

Comments

See A189628.

Links

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

Formula

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

Mathematica

(See A189638.)

Crossrefs

Cf. A189628, A189629, A189630.

Sequence in context: A095186 A265340 A356993 * A101402 A156251 A116458

Adjacent sequences: A189628 A189629 A189630 * A189632 A189633 A189634

Keyword

nonn

Author

Clark Kimberling, Apr 24 2011

Status

approved