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A087790 Partial sums of A085068. 0
1, 4, 6, 7, 9, 18, 19, 27, 30, 31, 38, 40, 41, 43, 49, 50, 53, 57, 58, 63, 65, 66, 68, 71, 72, 78, 82, 83, 86, 88, 89, 91, 95, 96, 101, 104, 105, 109, 111, 112, 114, 118, 119, 122, 130, 131, 135, 137, 138, 140, 143, 144, 148, 155, 156, 159, 161, 162, 164, 171, 172, 176 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

FORMULA

Conjecture : a(n)=3n+O(sqrt(n))

CROSSREFS

Sequence in context: A005621 A140468 A010418 * A086170 A123088 A189085

Adjacent sequences:  A087787 A087788 A087789 * A087791 A087792 A087793

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Oct 07 2003

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Last modified February 17 18:15 EST 2012. Contains 206061 sequences.