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A151516
Duplicate of A003104.
0
1, 1, 2, 4, 10, 24, 67, 182, 520, 1474, 4248, 12196
OFFSET
1,3
CROSSREFS
Sequence in context: A309508 A000084 A057734 * A003104 A121186 A309505
KEYWORD
dead
STATUS
approved