OFFSET
1,2
LINKS
Robert Israel, Table of n, a(n) for n = 1..10000
Paul Pollack, Joseph Vandehey, Besicovitch, Bisection, and the normality of 0.(1)(4)(9)(16)(25)..., arXiv:1405.6266 [math.NT], 2014.
Paul Pollack, Joseph Vandehey, Besicovitch, Bisection, and the Normality of 0.(1)(4)(9)(16)(25)..., The American Mathematical Monthly 122.8 (2015): 757-765.
Paul Pollack, Joseph Vandehey, Some normal numbers generated by arithmetic functions, arXiv:1309.7386 [math.NT], 2013.
MAPLE
map(t -> op(ListTools[Reverse](convert(numtheory:-sigma(t), base, 10))), [$1..100]); # Robert Israel, Nov 27 2015
MATHEMATICA
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 *)
CROSSREFS
KEYWORD
base,easy,nonn
AUTHOR
Omar E. Pol, Nov 06 2007
STATUS
approved