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A062763
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a(n) is the greatest common divisor of (n-1)! and n^n.
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3
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1, 1, 1, 2, 1, 24, 1, 16, 9, 640, 1, 20736, 1, 7168, 6075, 2048, 1, 23887872, 1, 8192000, 321489, 2883584, 1, 10319560704, 625, 54525952, 59049, 2877292544, 1, 835884417024000000, 1, 67108864, 578739249, 36507222016, 187578125, 61628086298345472, 1
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OFFSET
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1,4
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COMMENTS
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a(n) = 1 iff n is 1 or a prime.
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LINKS
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FORMULA
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EXAMPLE
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a(10) = gcd(9!, 10^10) = gcd(2^7*3^4*5*7, 2^10*5^10) = 2^7*5 = 640.
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PROG
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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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