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A167413
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Irregular array with the first differences of row A167384(n,.) in row n.
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1
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2, 2, 1, 3, 1, 3, 1, 3, 1, 3, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 4, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 5, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6, 1, 1, 1, 1, 6
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OFFSET
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0,1
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COMMENTS
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The left column has 2 two's, 4 three's, 6 four's,... ,2*k-2 k's.
Entries in the remaining columns are all 1.
If one looks at the flattened sequence (2), (2), (1,3), (1,3), (1,3),.. in blocks of 1, 1, 2, 2, 2,.. , A000194(k) terms, the sum of entries in the subsequence in block number k is A001670(k).
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LINKS
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EXAMPLE
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2;
2, 1;
3, 1;
3, 1;
3, 1;
3, 1, 1;
4, 1, 1;
4, 1, 1;
4, 1, 1;
4, 1, 1;
4, 1, 1;
4, 1, 1, 1;
5, 1, 1, 1;
5, 1, 1, 1;
5, 1, 1, 1;
5, 1, 1, 1;
5,...
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CROSSREFS
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KEYWORD
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nonn,tabf
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AUTHOR
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STATUS
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approved
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