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A033640 Base 3 digital convolution sequence. 0
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; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..38.

EXAMPLE

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.

CROSSREFS

Sequence in context: A286616 A019320 A201615 * A112027 A174400 A178079

Adjacent sequences:  A033637 A033638 A033639 * A033641 A033642 A033643

KEYWORD

base,nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified May 24 00:38 EDT 2019. Contains 323528 sequences. (Running on oeis4.)