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A258669
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Number of partitions of 2*n! into parts that are at most n.
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5
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0, 1, 3, 19, 1033, 1302311, 74312057469, 291484874476601933, 109290159404495354765494065, 5262212497884462986538879797523944401, 42425405450182072688801993326226988336684453926401, 72600595215718916449806606426629386781199080157371905867835756161
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OFFSET
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0,3
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LINKS
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FORMULA
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a(n) ~ n * 2^(n-1) * (n!)^(n-3).
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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