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A012547
Duplicate of A009706.
0
2, 12, 382, 23352, 2223002, 318236292, 63069898582, 16506522005232
OFFSET
0,1
CROSSREFS
Sequence in context: A215956 A251182 A266241 * A009706 A012551 A156509
KEYWORD
dead
STATUS
approved