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A189660 Partial sums of A064990. 6
0, 0, 1, 1, 1, 2, 3, 4, 4, 4, 4, 5, 5, 5, 6, 7, 8, 8, 9, 10, 10, 11, 12, 12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 16, 17, 17, 17, 17, 18, 18, 18, 19, 20, 21, 21, 22, 23, 23, 24, 25, 25, 25, 25, 26, 27, 28, 28, 29, 30, 30, 30, 30, 31, 32, 33, 33, 34, 35, 35, 35, 35, 36, 36, 36, 37, 37, 37, 38, 39, 40, 40 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
COMMENTS
See A064990.
LINKS
FORMULA
s(n)=s([(n+2)/3])+s([(n+1)/3])+[n/3]-s([n/3]), where s(0)=0, s(1)=0.
MATHEMATICA
(See A064990.)
CROSSREFS
Sequence in context: A087848 A087844 A287635 * A194167 A140427 A194816
KEYWORD
nonn
AUTHOR
Clark Kimberling, Apr 25 2011
STATUS
approved

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Last modified March 5 09:44 EST 2024. Contains 370545 sequences. (Running on oeis4.)