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A086821
Duplicate of A007576.
0
1, 1, 1, 3, 7, 15, 35, 87, 217, 547, 1417, 3735, 9911, 26513, 71581, 194681, 532481
OFFSET
0,4
CROSSREFS
Sequence in context: A182892 A124696 A081669 * A007576 A322913 A167539
KEYWORD
dead
STATUS
approved