24 lines
431 B
Julia
24 lines
431 B
Julia
"""
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bellnum(n)
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Compute the ``n``th Bell number.
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"""
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function bellnum(n::Integer)
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if n < 0
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throw(DomainError(n))
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elseif n < 2
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return 1
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end
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list = Vector{BigInt}(undef, n)
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list[1] = 1
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for i = 2:n
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for j = 1:i - 2
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list[i - j - 1] += list[i - j]
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end
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list[i] = list[1] + list[i - 1]
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end
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return list[n]
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end
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for i in 1:50
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println(bellnum(i))
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end
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