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Search: id:A086772
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| A086772 |
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Store the natural numbers in a triangular array such that values on each row have the same number of bits. Start a new row with the smallest number not yet recorded. a(n) represents the initial terms in the resulting array. |
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+0
1
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| 0, 1, 3, 4, 7, 9, 15, 21, 24, 31, 41, 45, 63, 64, 72, 74, 83, 94, 127, 139, 140, 173, 180
(list; table; graph; listen)
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OFFSET
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0,3
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COMMENT
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A067576 describes the sequences with a fixed number of binary bits using antidiagonals.
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EXAMPLE
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The array begins
0
1 2
3 5 6
4 8 16 32
7 11 13 14 19
9 10 12 17 18 20
15 23 27 29 30 39 43
...
so the initial terms are 0 1 3 4 7 9 15 ...
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CROSSREFS
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Cf. A000079, A018900, A014311, A014312, A014313, A023688, A023689, A023690, A023691.
Sequence in context: A069183 A119907 A158911 this_sequence A086336 A108796 A048849
Adjacent sequences: A086769 A086770 A086771 this_sequence A086773 A086774 A086775
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KEYWORD
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nonn,tabl
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AUTHOR
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Alford Arnold (alford1940(AT)aol.com), Aug 03 2003
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