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A059137 A hierarchical sequence (W3{2,2}cc - see A059126). 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; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
Jonas Wallgren, Hierarchical sequences
FORMULA
a(n) = 18*A037227(n). - Mitch Harris, Jun 29 2005
a(n) = A059136(3*n) + A059136(3*n+1) + A059136(3*n+2). - Sean A. Irvine, Sep 13 2022
CROSSREFS
Sequence in context: A052495 A052902 A217591 * A346756 A096011 A176026
KEYWORD
easy,nonn
AUTHOR
Jonas Wallgren, Jan 19 2001
STATUS
approved

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Last modified June 6 11:18 EDT 2024. Contains 373127 sequences. (Running on oeis4.)