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A087186
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Q(p)/p where p runs through the primes and Q(k) is the k-th central quadrinomial coefficient (A005190).
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1
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2, 4, 31, 304, 40044, 500522, 86094668, 1167752848, 225001039696, 652498288154820, 9451735761626880, 29731605314969017772, 6529673496702876605072, 97300805803445759460364
(list; graph; refs; listen; history; internal format)
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