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A024497
Duplicate of A007228.
0
3, 6, 28, 165, 1092, 7752, 57684, 444015, 3506100, 28242984, 231180144, 1917334783
OFFSET
1,1
CROSSREFS
Sequence in context: A068133 A370668 A220823 * A007228 A326074 A096155
KEYWORD
dead
STATUS
approved