This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A194692 #19 Mar 24 2017 00:47:53 %S A194692 0,2,4,8,14,22,30,42,55,67,77,93,113,145,165,189,216,236,246,262,286, %T A194692 322,363,411,459,513,547,591,641,721,769,817,872,908,918,934,958,994, %U A194692 1035,1083,1137,1205,1267,1347,1427,1551,1646,1750,1839,1933,1977,2025,2093 %N A194692 Corner sequence associated with A194440 and A194441. %C A194692 The sequence gives the number of toothpicks and D-toothpicks after n-th stage in the D-toothpick "corner" structure related to the D-toothpick "wide" triangle (See A194440). The first differences (A194693) give the number of toothpicks or D-toothpicks added at n-th stage. %H A194692 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 A194692 <a href="/index/To#toothpick">Index entries for sequences related to toothpick sequences</a> %Y A194692 Cf. A153006, A170883, A194270, A194440, A194441, A194694. %K A194692 nonn %O A194692 0,2 %A A194692 _Omar E. Pol_, Sep 01 2011