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A134688
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Successive digits of the terms of A000203, the sum-of-divisors function.
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1
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1, 3, 4, 7, 6, 1, 2, 8, 1, 5, 1, 3, 1, 8, 1, 2, 2, 8, 1, 4, 2, 4, 2, 4, 3, 1, 1, 8, 3, 9, 2, 0, 4, 2, 3, 2, 3, 6, 2, 4, 6, 0, 3, 1, 4, 2, 4, 0, 5, 6, 3, 0, 7, 2, 3, 2, 6, 3, 4, 8, 5, 4, 4, 8, 9, 1, 3, 8, 6, 0, 5, 6, 9, 0, 4, 2, 9, 6
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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MAPLE
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map(t -> op(ListTools[Reverse](convert(numtheory:-sigma(t), base, 10))), [$1..100]); # Robert Israel, Nov 27 2015
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MATHEMATICA
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Flatten@ Map[IntegerDigits, Array[DivisorSigma[1, #] &, {42}]] (* Michael De Vlieger, Nov 28 2015 *)
Flatten[IntegerDigits/@DivisorSigma[1, Range[60]]] (* Harvey P. Dale, Apr 06 2018 *)
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CROSSREFS
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KEYWORD
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base,easy,nonn
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AUTHOR
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STATUS
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approved
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