A087790 - OEIS

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A087790

Partial sums of A085068.

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; text; internal format)

OFFSET

0,2

LINKS

Table of n, a(n) for n=0..61.

FORMULA

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

CROSSREFS

Sequence in context: A349549 A010418 A243193 * A278960 A344570 A340833

Adjacent sequences: A087787 A087788 A087789 * A087791 A087792 A087793

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Oct 07 2003

STATUS

approved