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A167886 n-th single or isolated number minus n-th non-single or nonisolated number. 0
2, 3, 3, 7, 11, 15, 21, 27, 31, 34, 39, 45, 51, 55, 60, 63, 68, 75, 78, 83, 87, 100, 103, 109, 119, 125, 130, 133, 138, 144, 154, 159, 171, 182, 185, 189, 195, 205, 209, 214, 220, 226, 230, 239, 252, 256, 260, 273, 278, 287, 291, 296, 303, 308, 313, 315, 320, 327 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..58.

FORMULA

a(n)=A167706(n)-A167707(n).

EXAMPLE

a(1)=2-0=2, a(2)=4-1=3, a(3)=6-3=3, a(4)=12-5=7.

CROSSREFS

Cf. A167706, A167707.

Sequence in context: A155755 A080088 A098715 * A095978 A156763 A169653

Adjacent sequences:  A167883 A167884 A167885 * A167887 A167888 A167889

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Nov 14 2009

EXTENSIONS

All numbers > 68 corrected by R. J. Mathar, May 30 2010

STATUS

approved

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Last modified November 14 03:52 EST 2018. Contains 317159 sequences. (Running on oeis4.)