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 A059319 Number of 1's in row n of Pascal's rhombus mod 2. 5
 1, 3, 2, 5, 5, 6, 3, 11, 4, 15, 7, 10, 9, 9, 8, 21, 11, 12, 15, 25, 16, 21, 9, 22, 7, 27, 12, 15, 17, 24, 13, 43, 14, 33, 19, 20, 23, 45, 14, 55, 17, 48, 29, 35, 24, 27, 19, 42, 21, 21, 28, 45, 27, 36, 15, 33, 14, 51, 25, 40, 37, 39, 30, 85, 33, 42, 43, 55, 34, 57, 19, 44, 23, 69 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Also number of ON cells at generation n in the reversible cellular automaton RCA(3) when started with a single ON cell at generation 0. - N. J. A. Sloane, Mar 16 2017 REFERENCES Macfarlane, Alan J. "Linear reversible second-order cellular automata and their first-order matrix equivalents." Journal of Physics A: Mathematical and General 37.45 (2004): 10791. See Fig. 4. LINKS S. R. Finch, P. Sebah and Z.-Q. Bai, Odd Entries in Pascal's Trinomial Triangle arXiv:0802.2654 [math.NT], 2008. J. Goldwasser et al., The density of ones in Pascal's rhombus, Discrete Math., 204 (1999), 231-236. Robert Price, Number of ON cells at each generation of RCA(3) Paul K. Stockmeyer, The Pascal Rhombus and the Stealth Configuration, arXiv:1504.04404 [math.CO], 2015. CROSSREFS Cf. A059317, A059318, A059320, A007318. Sequence in context: A303917 A186929 A223538 * A196438 A019828 A289627 Adjacent sequences:  A059316 A059317 A059318 * A059320 A059321 A059322 KEYWORD easy,nonn AUTHOR N. J. A. Sloane, Jan 26 2001 EXTENSIONS More terms from Larry Reeves (larryr(AT)acm.org), Jan 30 2001 STATUS approved

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Last modified July 17 23:21 EDT 2019. Contains 325109 sequences. (Running on oeis4.)