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A059137 A hierarchical sequence (W3{2,2}cc - see A059126). +0
2
18, 54, 18, 90, 18, 54, 18, 126, 18, 54, 18, 90, 18, 54, 18, 162, 18, 54, 18, 90, 18, 54, 18, 126, 18, 54, 18, 90, 18, 54, 18, 198, 18, 54, 18, 90, 18, 54, 18, 126, 18, 54, 18, 90, 18, 54, 18, 162, 18, 54, 18, 90, 18, 54, 18, 126, 18, 54, 18, 90, 18, 54, 18, 234, 18, 54 (list; graph; listen)
OFFSET

0,1

LINKS

J. Wallgren, Hierarchical sequences

FORMULA

a(n) = 18*A037227(n) (from Mitch Harris, Jun 29 2005)

CROSSREFS

Sequence in context: A133356 A052495 A052902 this_sequence A096011 A068396 A044120

Adjacent sequences: A059134 A059135 A059136 this_sequence A059138 A059139 A059140

KEYWORD

easy,nonn

AUTHOR

Jonas Wallgren (jonwa(AT)ida.liu.se), Jan 19 2001

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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