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 A033646 Base 9 digital convolution sequence. 3
 1, 1, 2, 6, 24, 120, 720, 5040, 40320, 5040, 45360, 95760, 332640, 1426320, 7464240, 46211760, 330946560, 2693784240, 661893120, 6049461600, 13422709440, 52367051520, 236313624960, 1286302227840, 8190440616960, 59905688774400 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Table of n, a(n) for n=0..25. 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: A072131 A230051 A067455 * A319549 A319209 A212310 Adjacent sequences: A033643 A033644 A033645 * A033647 A033648 A033649 KEYWORD base,nonn AUTHOR David W. Wilson STATUS approved

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Last modified September 21 21:03 EDT 2023. Contains 365503 sequences. (Running on oeis4.)