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Search: id:A132307
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| 1, 3, 1, 7, 7, 1, 15, 23, 11, 1, 31, 63, 47, 15, 1, 63, 159, 159, 79, 19, 1, 127, 383, 479, 319, 119, 23, 1, 255, 895, 1343, 1119, 559, 167, 27, 1, 511, 2047, 3583, 3583, 2239, 895, 223, 31, 1, 1023, 4607, 9215, 10751, 8063, 4031, 1343, 287, 35, 1
(list; table; graph; listen)
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OFFSET
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0,2
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COMMENT
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Row sums = A132308: (1, 4, 15, 50, 157, 480, 1451,...). Inverse binomial transform of A132307 = triangle A132309 (having row sums A077552).
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FORMULA
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2*A007318^(2) - A000012 as infinite lower triangular matrices.
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EXAMPLE
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First few rows of the triangle are:
1;
3, 1;
7, 7, 1;
15, 23, 11, 1;
31, 63, 47, 15, 1;
63, 159, 159, 79, 19, 1;
...
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CROSSREFS
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Cf. A132308, A132309, A077552.
Sequence in context: A118228 A082053 A136035 this_sequence A101748 A058606 A135284
Adjacent sequences: A132304 A132305 A132306 this_sequence A132308 A132309 A132310
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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), Aug 18 2007
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