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A033641 Base 4 digital convolution sequence. 0
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; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..32.

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: A091944 A069936 A043294 * A153190 A010240 A199154

Adjacent sequences:  A033638 A033639 A033640 * A033642 A033643 A033644

KEYWORD

base,nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified May 24 06:53 EDT 2019. Contains 323529 sequences. (Running on oeis4.)