

A368494


Irregular triangle read by rows: row n lists the 1based 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
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OFFSET

0,6


LINKS



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



KEYWORD

nonn,base,tabf,easy


AUTHOR



STATUS

approved



