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A168045 n-th non-single or nonisolated number plus n. 0
1, 3, 6, 9, 12, 14, 16, 18, 20, 23, 25, 27, 29, 31, 34, 36, 38, 40, 43, 45, 47, 49, 51, 53, 56, 58, 60, 62, 64, 66, 69, 71, 73, 75, 78, 80, 82, 84, 87, 89, 91, 93, 95, 98, 100, 102, 104, 106, 108, 111, 113, 115, 117, 119, 121, 124, 126, 128, 130, 133, 135, 137, 139, 141 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..64.

FORMULA

a(n)=A167707(n)+n.

a(n) = 2n + n / log n + O(n / (log n)^2). -Charles R Greathouse IV, May 25, 2011

CROSSREFS

Sequence in context: A230215 A120688 A102014 * A288522 A226894 A091780

Adjacent sequences:  A168042 A168043 A168044 * A168046 A168047 A168048

KEYWORD

nonn,less

AUTHOR

Juri-Stepan Gerasimov, Nov 17 2009

STATUS

approved

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Last modified October 18 12:18 EDT 2019. Contains 328160 sequences. (Running on oeis4.)