0,1
J. Wallgren, Hierarchical sequences
Sequence in context: A120656 A092349 A027659 * A020644 A181411 A027286
Adjacent sequences: A059130 A059131 A059132 * A059134 A059135 A059136
easy,nonn
Jonas Wallgren (jonwa(AT)ida.liu.se), Jan 19 2001