A189730 Partial sums of A189727.

0, 1, 2, 3, 4, 4, 5, 6, 6, 7, 8, 8, 9, 10, 10, 10, 11, 12, 13, 14, 14, 15, 16, 16, 16, 17, 18, 19, 20, 20, 21, 22, 22, 22, 23, 24, 25, 26, 26, 27, 28, 28, 28, 29, 30, 30, 31, 32, 33, 34, 34, 35, 36, 36, 37, 38, 38, 39, 40, 40, 40, 41, 42, 43, 44, 44, 45, 46, 46, 46, 47, 48, 48, 49, 50, 51, 52, 52, 53, 54, 54

Offset

1,3

Comments

See A189727.

Links

Table of n, a(n) for n=1..81.

Formula

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

Mathematica

(See A189727.)

Crossrefs

Cf. A189727, A189728, A189729.

Sequence in context: A112232 A168389 A039708 * A249569 A094500 A049473

Adjacent sequences: A189727 A189728 A189729 * A189731 A189732 A189733

Keyword

nonn

Author

Clark Kimberling, Apr 26 2011

Status

approved