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A047756
Duplicate of A047767.
0
0, 0, 1, 2, 2, 7, 12, 29, 55, 143, 271, 728, 1428, 3873, 7752, 21318, 43256, 120175
OFFSET
0,4
CROSSREFS
Sequence in context: A123604 A321306 A024309 * A047767 A303588 A366583
KEYWORD
dead
STATUS
approved