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A072615
Duplicate of A020871.
0
0, 3, 16, 81, 392, 1815, 8112, 35301, 150544, 632043, 2620880, 10759353
OFFSET
0,2
CROSSREFS
Sequence in context: A037661 A372324 A290587 * A020871 A037780 A163012
KEYWORD
dead
STATUS
approved