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A316777
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a(n) = Sum_{k=1..n} (k!)^5.
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3
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1, 33, 7809, 7970433, 24891170433, 193516654370433, 3252209580756770433, 106565314598088199970433, 6292489787293574101716770433, 629244614687684894925781716770433, 101340090272908294280184341461716770433, 25216602106682627624613336066827221716770433
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OFFSET
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1,2
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LINKS
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MATHEMATICA
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PROG
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(PARI) {a(n) = sum(k=1, n, k!^5)}
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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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