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A059152
A hierarchical sequence (W'2{2}c - see A059126).
0
4, 16, 4, 64, 4, 16, 4, 256, 4, 16, 4, 64, 4, 16, 4, 1024, 4, 16, 4, 64, 4, 16, 4, 256, 4, 16, 4, 64, 4, 16, 4, 4096, 4, 16, 4, 64, 4, 16, 4, 256, 4, 16, 4, 64, 4, 16, 4, 1024, 4, 16, 4, 64, 4, 16, 4, 256, 4, 16, 4, 64, 4, 16, 4, 16384, 4, 16, 4, 64, 4, 16, 4, 256, 4, 16, 4, 64, 4, 16
OFFSET
0,1
FORMULA
a(n) = 4*4^A007814(n). - Mitch Harris, Jun 29 2005
CROSSREFS
Sequence in context: A334840 A232515 A010295 * A059156 A050080 A329068
KEYWORD
easy,nonn
AUTHOR
Jonas Wallgren, Feb 02 2001
STATUS
approved