A166866 - OEIS

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A166866

Mixed fractal sequence mf(n). Mix fractals A158405, A002260.

1, 1, 1, 3, 1, 2, 1, 3, 5, 1, 2, 3, 1, 3, 5, 7, 1, 2, 3, 4, 1, 3, 5, 7, 9, 1, 2, 3, 4, 5, 1, 3, 5, 7, 9, 11, 1, 2, 3, 4, 5, 6, 1, 3, 5, 7, 9, 11, 13, 1, 2, 3, 4, 5, 6, 7, 1, 3, 5, 7, 9, 11, 13, 15, 1, 2, 3, 4, 5, 6, 7, 8, 1, 3, 5, 7, 9, 11, 13, 15, 17, 1, 2, 3, 4, 5, 6, 7, 8, 9

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OFFSET

0,4

COMMENTS

See A166494. Consider a(n+1) sum by 1,1,2,2,3,3=A008619 terms: 1; 1; 3+1=4; 2+1=3; 3+5+1=9; 2+3+1=6; 3+5+7+1=16; 2+3+4+1=10; this is A123596(n+2).Via A001105(n+1),A123596 is linked to (extended) Mendeleyev-Moseley-Seaborg table of the elements.

LINKS

Table of n, a(n) for n=0..89.

CROSSREFS

Sequence in context: A029329 A287872 A191863 * A370220 A177343 A124036

Adjacent sequences: A166863 A166864 A166865 * A166867 A166868 A166869

KEYWORD

nonn,uned

AUTHOR

Paul Curtz, Oct 22 2009

STATUS

approved