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Search: id:A033641
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| A033641 |
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Base 4 digital convolution sequence. |
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+0
1
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| 1, 1, 2, 6, 2, 8, 18, 62, 36, 160, 392, 1496, 1176, 5664, 14856, 61560, 5664, 20520, 102600, 313464, 123120, 539184, 1514952, 5207160, 3569088, 15498360, 43342056, 164591976, 145524528, 682642512, 1966450584, 8092803816, 1365285024
(list; graph; listen)
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OFFSET
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0,3
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EXAMPLE
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Suppose base = 3 and a(0)..a(13) are 1 1 2 1 3 7 6 20 52 6 26 104 32 162. In base 3, 14 = 112, so we convolve the last three terms with 1, 1, 2 to obtain 104*1+32*1+162*2 = 460.
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CROSSREFS
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Sequence in context: A091944 A069936 A043294 this_sequence A153190 A010240 A002172
Adjacent sequences: A033638 A033639 A033640 this_sequence A033642 A033643 A033644
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KEYWORD
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base,nonn
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AUTHOR
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David W. Wilson (davidwwilson(AT)comcast.net)
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