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 A368494 Irregular triangle read by rows: row n lists the 1-based positions (starting from the right) of zeros in the binary expansion of n, or 0 if the binary expansion of n contains only ones. 6
 1, 0, 1, 0, 1, 2, 2, 1, 0, 1, 2, 3, 2, 3, 1, 3, 3, 1, 2, 2, 1, 0, 1, 2, 3, 4, 2, 3, 4, 1, 3, 4, 3, 4, 1, 2, 4, 2, 4, 1, 4, 4, 1, 2, 3, 2, 3, 1, 3, 3, 1, 2, 2, 1, 0, 1, 2, 3, 4, 5, 2, 3, 4, 5, 1, 3, 4, 5, 3, 4, 5, 1, 2, 4, 5, 2, 4, 5, 1, 4, 5, 4, 5, 1, 2, 3, 5, 2, 3, 5 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,6 LINKS Paolo Xausa, Table of n, a(n) for n = 0..10384 (rows 0..2200 of the triangle, flattened). EXAMPLE Triangle begins: [0] 1; [1] 0; [2] 1; [3] 0; [4] 1, 2; [5] 2; [6] 1; [7] 0; [8] 1, 2, 3; ... Row n = 50 is 1, 3, 4: binary expansion of 50: 1 1 0 0 1 0 positions of zeros: - - 4 3 - 1 MATHEMATICA Array[Replace[Flatten[Position[Reverse[IntegerDigits[#, 2]], 0]], {} -> {0}] &, 100, 0] CROSSREFS Cf. A030308, A359400 (row sums), A048793 (positions of ones). Sequence in context: A123149 A185158 A185700 * A061926 A180835 A053188 Adjacent sequences: A368491 A368492 A368493 * A368495 A368496 A368497 KEYWORD nonn,base,tabf,easy AUTHOR Paolo Xausa, Mar 18 2024 STATUS approved

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Last modified May 23 10:34 EDT 2024. Contains 372760 sequences. (Running on oeis4.)