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A059137 A hierarchical sequence (W3{2,2}cc - see A059126). 1
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; refs; listen; history; internal format)
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 * A096011 A176026 A068396

Adjacent sequences:  A059134 A059135 A059136 * A059138 A059139 A059140

KEYWORD

easy,nonn

AUTHOR

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

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Last modified February 16 16:34 EST 2012. Contains 205938 sequences.