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Search: id:A132442
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| A132442 |
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Triangle, n-th row = first n terms of n-th row of an array formed by A051731 * A127093(transform). |
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+0
1
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| 1, 1, 3, 1, 1, 4, 1, 3, 1, 7, 1, 1, 1, 1, 6, 1, 3, 4, 3, 1, 12, 1, 1, 1, 1, 1, 1, 8, 1, 3, 1, 7, 1, 3, 1, 15, 1, 1, 4, 1, 1, 4, 1, 1, 13, 1, 3, 1, 3, 6, 3, 1, 3, 18
(list; table; graph; listen)
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OFFSET
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1,3
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COMMENT
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Right border = sigma(n), A000203: (1, 3, 4, 7, 6, 12, 8,...). Row sums = A038040: (1, 4, 6, 12, 10, 24, 14,...).
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FORMULA
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Given an array formed by A051731 * A127093(transform), extract the first n terms of row n to form the triangle.
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EXAMPLE
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First few rows of the array are:
1, 1, 1, 1, 1, 1, 1,...
1, 3, 1, 3, 1, 3, 1,...
1, 1, 4, 1, 1, 4, 1,...
1, 3, 1, 7, 1, 3, 1,...
1, 1, 1, 1, 6, 1, 1,...
1, 3, 4, 3, 1, 12, 1,...
...
First few rows of the triangle are:
1;
1, 3;
1, 1, 4;
1, 3, 1, 7;
1, 1, 1, 1, 6;
1, 3, 4, 3, 1, 12;
1, 1, 1, 1, 1, 1, 8;
1, 3, 1, 7, 1, 3, 1, 15;
...
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CROSSREFS
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Cf. A051731, A127093, A038040, A000203.
Adjacent sequences: A132439 A132440 A132441 this_sequence A132443 A132444 A132445
Sequence in context: A030184 A104610 A138684 this_sequence A074927 A098712 A023579
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KEYWORD
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nonn,tabl
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 14 2007
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