Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the 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