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A347304
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a(n) = n!/(floor(n/2)!*floor(n/3)!*floor(n/6)!).
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1
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1, 1, 2, 6, 12, 60, 60, 420, 840, 2520, 5040, 55440, 13860, 180180, 360360, 1081080, 2162160, 36756720, 4084080, 77597520, 155195040, 465585120, 931170240, 21416915520, 1338557220, 33463930500, 66927861000, 200783583000, 401567166000, 11645447814000, 465817912560
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OFFSET
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0,3
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LINKS
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PROG
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(Python)
from math import factorial
def A347304(n): return factorial(n)//factorial(n//2)//factorial(n//3)//factorial(n//6) # Chai Wah Wu, Aug 28 2021
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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