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A366820
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a(n) is the sum of the divisors of n^n + 1.
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1
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3, 3, 6, 56, 258, 6264, 52136, 1559520, 17041416, 706911048, 10102223208, 706019328000, 9101898907920, 519285252355776, 11672709747324912, 880565163670372352, 18446811354131136516, 1792353900753729655758, 54357680125881245248800, 4154723599066412190910560
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OFFSET
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0,1
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LINKS
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FORMULA
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MATHEMATICA
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PROG
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(PARI) a(n) = sigma(n^n+1);
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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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