A213360 - OEIS

%I #14 Sep 26 2015 01:17:14

%S 0,6,12,18,36,42,60,78,96,126,144,174,216,222,240,258,288,342,372,450,

%T 492,546,624,666,732,810,828,870,912,966,1056,1122,1248,1338,1428,

%U 1530,1596,1674,1764,1854,1944,1998,2064,2178,2256,2382,2508,2610,2712,2850,2952,3114,3216,3330,3492,3618,3780,3894,3996,4098

%N Snowflake sequence starting with six E-toothpicks.

%C The structure is the same as A161330 but without the two central E-toothpicks. All terms are multiples of 6.

%H N. J. A. Sloane, <a href="/A161330/a161330.jpg">A single E-toothpick</a>

%H N. J. A. Sloane, <a href="/wiki/Catalog_of_Toothpick_and_CA_Sequences_in_OEIS">Catalog of Toothpick and Cellular Automata Sequences in the OEIS</a>

%H <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a>

%F a(n) = A161330(n+1) - 2 = 6*A161336(n).

%Y Cf. A008588, A139250, A161328, A161330, A161336.

%K nonn

%O 0,2

%A _Omar E. Pol_, Dec 16 2012