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A134839
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Triangle, n-th row = first n terms in n-th row of an array formed by A051731 * A126988(transform).
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1
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1, 1, 3, 1, 2, 4, 1, 3, 3, 7, 1, 2, 3, 4, 6, 1, 3, 4, 6, 5, 12, 1, 2, 3, 4, 5, 6, 8, 1, 3, 3, 7, 5, 9, 7, 15, 1, 2, 4, 4, 5, 8, 7, 8, 13, 1, 3, 3, 6, 6, 9, 7, 12, 9, 18
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OFFSET
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1,3
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COMMENTS
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Right border = sigma(n), A000203: (1, 3, 4, 7, 6, 12, ...).
Row sums = A007437: (1, 4, 7, 14, 16, 31, 29, 50, ...).
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LINKS
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FORMULA
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Given the array formed by A051731 * A126988(transform), the triangle by rows = first n terms of n-th row of the array.
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EXAMPLE
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First few rows of the array:
1, 2, 3, 4, 5, 6, 7, ...
1, 3, 3, 6, 5, 9, 7, ...
1, 2, 4, 4, 5, 8, 7, ...
1, 3, 3, 7, 5, 9, 7, ...
1, 2, 3, 4, 6, 6, 7, ...
1, 3, 4, 6, 5, 12, 7, ...
...
First few rows of the triangle:
1;
1, 3;
1, 2, 4;
1, 3, 3, 7;
1, 2, 3, 4, 6;
1, 3, 4, 6, 5, 12;
1, 2, 3, 4, 5, 6, 8;
...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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