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A073080
3 appears three times, 2*3=6 appears six times, 2*6=12 appears twelve times etc.
0
3, 3, 3, 6, 6, 6, 6, 6, 6, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48
OFFSET
1,1
FORMULA
Let b(1)=1 b(n+1)=b(n)*floor(n/b(n))+n*floor(b(n)/n) then a(n)=b(n+3)
MATHEMATICA
Table[3*2^(n-1), {n, 1, 5}, {3*2^(n-1)}] // Flatten (* Jean-François Alcover, Nov 24 2016 *)
CROSSREFS
Sequence in context: A098529 A133774 A108581 * A171601 A057944 A281258
KEYWORD
easy,nonn
AUTHOR
Benoit Cloitre, Aug 17 2002
STATUS
approved