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Search: id:A159933
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| 1, 1, -1, 0, -1, 2, -1, -1, 3, -4, 2, 2, -3, 0, 0, 6, -7, -5, 14, -2, -14, 6, 13, -12, -2, 6, -1, -8
(list; graph; listen)
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OFFSET
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1,6
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COMMENT
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Preface d(n) with a 1: (1, 1, 2, 2, 3, 2,...); then convolved with
A159933 = the next term in d(n).
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FORMULA
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INVERTi transform of d(n): (1, 2, 2, 3, 2, 4, 2, 4, 3,...).
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EXAMPLE
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d(6) = 4 = (1, 1, 2, 2, 3, 2) dot (2, -1, 0, -1, 1, 1) = (2, -1, 0, -2, 3, 2) = 4.
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CROSSREFS
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Cf. A000005, A159934
Sequence in context: A123974 A056863 A120019 this_sequence A128314 A025564 A052265
Adjacent sequences: A159930 A159931 A159932 this_sequence A159934 A159935 A159936
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KEYWORD
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sign
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AUTHOR
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Gary W. Adamson (qntmpkt(AT)yahoo.com), Apr 26 2009
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