A181798 - OEIS

A181798

Terms of A181797 arranged in ascending order.

1, 6, 12, 12, 24, 30, 36, 48, 56, 72, 96, 108, 132, 144, 150, 180, 182, 192, 216, 288, 306, 324, 336, 360, 360, 380, 384, 392, 432, 552, 576, 648, 672, 672, 720, 750, 768, 792, 864, 870, 900, 972, 992, 1080, 1092, 1152, 1296, 1344, 1406, 1440, 1452, 1536, 1584, 1584

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OFFSET

1,2

COMMENTS

The natural density of positive integers m such that A003557(m) = A181799(n) equals 6/(a(n)*Pi^2).

LINKS

Table of n, a(n) for n=1..54.

Wikipedia, Natural density

FORMULA

sum{n>=1} 1/a(n) = pi^2/6 = A013661.

CROSSREFS

Sequence in context: A315597 A315598 A224301 * A323332 A330922 A330921

Adjacent sequences: A181795 A181796 A181797 * A181799 A181800 A181801

KEYWORD

nonn

AUTHOR

Matthew Vandermast, Dec 05 2010

STATUS

approved