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A174012 3*A064680(n). 0
6, 3, 18, 6, 30, 9, 42, 12, 54, 15, 66, 18, 78, 21, 90, 24, 102, 27, 114, 30, 126, 33, 138, 36, 150, 39, 162, 42, 174, 45, 186, 48, 198, 51, 210, 54, 222, 57, 234, 60, 246, 63, 258, 66, 270, 69, 282, 72, 294, 75, 306, 78, 318, 81, 330, 84, 342, 87, 354, 90, 366, 93, 378, 96 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

a(n) = A064680(3*n), similar to A165988.

a(n) mod 9 = 3*A080425(n) (period length 3).

a(2n+1) = A017593(n).

a(2n) = A008585(n).

CROSSREFS

Sequence in context: A231881 A229005 A067990 * A050008 A166450 A019069

Adjacent sequences:  A174009 A174010 A174011 * A174013 A174014 A174015

KEYWORD

nonn,easy

AUTHOR

Paul Curtz, Mar 05 2010

STATUS

approved

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Last modified August 17 22:59 EDT 2019. Contains 326059 sequences. (Running on oeis4.)