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A244559
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Numbers obtained by concatenating the squares of the digits of n!.
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0
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1, 4, 36, 416, 140, 4940, 250160, 160940, 936464640, 9364646400, 981811366400, 1649810013600, 3644490406400, 6449149644811400, 1904936491693664000, 408144496481646464000, 925253664491646408136000, 36160494994902549464000, 141361625100160646494000
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OFFSET
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1,2
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LINKS
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FORMULA
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EXAMPLE
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For n = 7, 7! = 5040 and a(7) = 250160, which is the concatenation of the squares of the digits of 5040. For n=8, 8! = 40320 and a(8) = 160940.
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PROG
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(Magma) [StringToInteger(&cat[IntegerToString(h): h in Reverse([i^2: i in Intseq(Factorial(n))])]): n in [1..50]];
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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