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Search: id:A143356
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| 1, 4, 6, 12, 11, 23, 17, 32, 29, 41, 30, 66, 38, 61, 61, 82, 53, 104, 61, 115, 92, 107, 77, 170, 98, 132, 124, 170, 104, 216, 114, 201, 158, 183, 158, 287, 143, 210, 193, 293, 161, 318, 171, 291, 266, 266, 189, 418, 218, 335, 269, 357, 220, 426, 271, 429, 309, 354, 250
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OFFSET
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1,2
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FORMULA
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Inverse Mobius transform (A051731) of A006218. Row sums of triangle A143355.
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EXAMPLE
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a(4) = 12 = sum of row 4 terms of triangle A143355: (7, + 3 + 1 + 1).
a(4) = 12 = (1, 1, 0, 1) dot (1, 3, 5, 8) = (1 + 3 + 0 + 8), where (1, 1, 0, 1) = row 4 of A051731 and A006218 = (1, 3, 5, 8, 10, 14,...).
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CROSSREFS
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Cf. A006218, A051731, A143355.
Sequence in context: A110758 A074162 A038040 this_sequence A058270 A058199 A163097
Adjacent sequences: A143353 A143354 A143355 this_sequence A143357 A143358 A143359
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KEYWORD
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nonn
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 10 2008
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EXTENSIONS
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Corrected typo in A-number in formula; added more terms - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jan 19 2009
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