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 A046819 Number of 1's in binary expansion of 3n+2. 0
 1, 2, 1, 3, 3, 2, 2, 4, 3, 4, 1, 3, 3, 3, 3, 5, 3, 4, 3, 5, 5, 2, 2, 4, 3, 4, 2, 4, 4, 4, 4, 6, 3, 4, 3, 5, 5, 4, 4, 6, 5, 6, 1, 3, 3, 3, 3, 5, 3, 4, 3, 5, 5, 3, 3, 5, 4, 5, 3, 5, 5, 5, 5, 7, 3, 4, 3, 5, 5, 4, 4, 6, 5, 6, 3, 5, 5, 5, 5, 7, 5, 6, 5, 7, 7, 2, 2, 4, 3, 4, 2, 4, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS S. R. Finch, P. Sebah and Z.-Q. Bai, Odd Entries in Pascal's Trinomial Triangle (arXiv:0802.2654) FORMULA a(2n+1) = a(n) + 1, since 6n+5 = 2(3n+2)+1. - Ralf Stephan, Mar 05 2004 CROSSREFS Sequence in context: A035050 A198790 A212907 * A159945 A089216 A102746 Adjacent sequences:  A046816 A046817 A046818 * A046820 A046821 A046822 KEYWORD nonn AUTHOR STATUS approved

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