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A033924 Base 4 digital convolution sequence. 0
1, 1, 2, 3, 1, 2, 3, 4, 2, 3, 4, 5, 3, 4, 5, 6, 2, 3, 4, 5, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8, 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10, 6, 7, 8, 9, 7, 8, 9, 10, 8, 9, 10, 11, 9, 10, 11, 12, 3, 4, 5, 6, 4, 5, 6, 7, 5, 6, 7, 8, 6, 7, 8, 9, 5, 6, 7, 8, 6, 7, 8, 9, 7, 8, 9, 10, 8, 9, 10, 11, 7, 8, 9 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Table of n, a(n) for n=1..99.

FORMULA

For example, 53 = 311 in base 4, so a(53) = 3a(2)+1a(1)+1a(0).

CROSSREFS

Sequence in context: A129968 A027615 A053737 * A276328 A276332 A274641

Adjacent sequences:  A033921 A033922 A033923 * A033925 A033926 A033927

KEYWORD

nonn,base

AUTHOR

David W. Wilson

STATUS

approved

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Last modified June 14 17:31 EDT 2021. Contains 345037 sequences. (Running on oeis4.)