cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A324914 a(n) = Sum_{k=1..n} 2^k * tau(k), where tau(k) = A000005(k).

Original entry on oeis.org

2, 10, 26, 74, 138, 394, 650, 1674, 3210, 7306, 11402, 35978, 52362, 117898, 248970, 576650, 838794, 2411658, 3460234, 9751690, 18140298, 34917514, 51694730, 185912458, 286575754, 555011210, 1091882122, 2702494858, 3776236682, 12366171274
Offset: 1

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Author

Vaclav Kotesovec, Mar 18 2019

Keywords

Comments

Partial sums of A323351 with n=0 term of A323351 omitted. - Robert Israel, Jun 27 2019

Crossrefs

Programs

  • Maple
    ListTools:-PartialSums([seq(2^k*numtheory:-tau(k),k=1..100)]); # Robert Israel, Jun 27 2019
  • Mathematica
    Accumulate[Table[2^k*DivisorSigma[0, k], {k, 1, 30}]]
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