A174012 a(n) = 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

Offset

0,2

Links

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

Cf. A008585, A017593, A064680, A080425, A165988.

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

Extensions

a(0) = 0 prepended by Georg Fischer, Jul 01 2020

Status

approved