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A352601
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a(n) = RisingFactorial(2*n, n) = A124320(2*n, n).
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2
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1, 2, 20, 336, 7920, 240240, 8910720, 390700800, 19769460480, 1133836704000, 72684900288000, 5150244363264000, 399703747322880000, 33719008124158156800, 3072176295756632064000, 300649528529562820608000, 31451820032947491201024000, 3502589049123697883750400000
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OFFSET
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0,2
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LINKS
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MATHEMATICA
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Table[Pochhammer[2*n, n], {n, 0, 17}] (* Amiram Eldar, Mar 22 2022 *)
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PROG
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(Sage)
def a(n): return rising_factorial(2*n, n)
print([a(n) for n in range(18)])
(Python)
from sympy import rf
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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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