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 A194440 Number of toothpicks and D-toothpicks after n-th stage in the D-toothpick "wide" triangle of the second kind. 19
 0, 1, 3, 7, 11, 15, 19, 27, 35, 39, 43, 51, 63, 79, 87, 103, 119, 123, 127, 135, 147, 163, 179, 203, 229, 253, 265, 285, 313, 353, 373, 405, 437, 441, 445, 453, 465, 481, 497, 521, 547, 571, 591, 623, 663, 727, 767, 815, 869, 909, 921, 941, 973, 1021 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 COMMENTS For the D-toothpick "narrow" triangle of the second kind see A194442. The structure is essentially one of the wedges of several D-toothpick structures. For more information see A194270. The first differences (A194441) give the number of toothpicks or D-toothpicks added at n-th stage. [Omar E. Pol, Dec 29 2012] LINKS Omar E. Pol, Illustration of the structure after 32 stages Omar E. Pol, Illustration of the structure after 64 stages N. J. A. Sloane, Catalog of Toothpick and Cellular Automata Sequences in the OEIS CROSSREFS Cf. A139250, A160120, A160406, A161830, A194270, A194277, A194441, A194442, A194444, A194692, A194693, A194696, A220494, A220520. Sequence in context: A034934 A191151 A220494 * A220520 A228436 A189364 Adjacent sequences:  A194437 A194438 A194439 * A194441 A194442 A194443 KEYWORD nonn AUTHOR Omar E. Pol, Aug 29 2011 STATUS approved

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Last modified September 16 12:41 EDT 2019. Contains 327113 sequences. (Running on oeis4.)