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A134688 Successive digits of the terms of A000203, the sum-of-divisors function. 1
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)
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

Cf. A000203, A077650.

Sequence in context: A082226 A010613 A299693 * A077650 A244669 A316570

Adjacent sequences:  A134685 A134686 A134687 * A134689 A134690 A134691

KEYWORD

base,easy,nonn

AUTHOR

Omar E. Pol, Nov 06 2007

STATUS

approved

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Last modified February 27 03:50 EST 2020. Contains 332299 sequences. (Running on oeis4.)