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A006287 Sum of squares of digits of ternary representation of n.
(Formerly M3194)
5
0, 1, 4, 1, 2, 5, 4, 5, 8, 1, 2, 5, 2, 3, 6, 5, 6, 9, 4, 5, 8, 5, 6, 9, 8, 9, 12, 1, 2, 5, 2, 3, 6, 5, 6, 9, 2, 3, 6, 3, 4, 7, 6, 7, 10, 5, 6, 9, 6, 7, 10, 9, 10, 13, 4, 5, 8, 5, 6, 9, 8, 9, 12, 5, 6, 9, 6, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
REFERENCES
Jeffrey Shallit, personal communication.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
MAPLE
A006287 := proc(n)
local d ;
convert(n, base, 3) ;
add(d^2, d=%) ;
end proc: # R. J. Mathar, Jun 13 2014
MATHEMATICA
Table[Total[IntegerDigits[n, 3]^2], {n, 0, 80}] (* Harvey P. Dale, Apr 23 2011 *)
CROSSREFS
Sequence in context: A188931 A125560 A046573 * A087225 A366619 A343404
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)