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.

A079552 Record values in A079551.

Original entry on oeis.org

0, 1, 3, 6, 10, 14, 20, 25, 31, 35, 41, 49, 58, 66, 74, 78, 84, 88, 100, 108, 116, 128, 136, 140, 148, 160, 169, 177, 181, 193, 203, 215, 223, 231, 239, 245, 257, 269, 279, 283, 289, 293, 311, 319, 333, 342, 354, 370, 378, 382, 394, 402, 410, 430, 438, 447, 451, 457, 473
Offset: 0

Views

Author

N. J. A. Sloane, Jan 24 2003

Keywords

Crossrefs

Partial sums of A008328.

Programs

  • Mathematica
    RecurrenceTable[{a[0]==0, a[n]==DivisorSigma[0,Prime[n]-1]+a[n-1]}, a, {n, 100}] (* Jon Maiga, Jan 02 2019 *)

Formula

a(n) = A000005(A006093(n)) + a(n-1). - Jon Maiga, Jan 02 2019