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A294773
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a(n) = Sum_{d|n} d^(d+n+1).
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3
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1, 33, 2188, 262273, 48828126, 13060753578, 4747561509944, 2251799880796161, 1350851717674586413, 1000000000152587898818, 895430243255237372246532, 953962166441299506564257602, 1192533292512492016559195008118
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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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a[n_] := DivisorSum[n, #^(# + n + 1) &]; Array[a, 13] (* Amiram Eldar, Oct 04 2023 *)
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PROG
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(PARI) {a(n) = sumdiv(n, d, d^(d+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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