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Search: id:A033640
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| A033640 |
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Base 3 digital convolution sequence. |
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+0
1
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| 1, 1, 2, 1, 3, 7, 6, 20, 52, 6, 26, 104, 32, 162, 460, 356, 1438, 4048, 712, 3588, 15272, 5012, 27460, 90476, 64944, 300816, 912472, 90476, 155420, 611656, 1067892, 1770024, 4763360, 4151704, 14746316, 39566064, 8915064, 27813084, 109938548
(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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Adjacent sequences: A033637 A033638 A033639 this_sequence A033641 A033642 A033643
Sequence in context: A127896 A010757 A019320 this_sequence A112027 A024404 A077173
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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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