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.

A264897 Integers n such that A002110(n) is divisible by A098999(n).

Original entry on oeis.org

138, 163, 873, 1054, 1079, 1604, 1825, 1990, 2079, 2493, 2509, 2810, 2950, 3494, 3800, 3910, 4300, 4462, 4470, 4564, 4593, 4957, 5140, 5450, 5558, 5572, 5581, 5834, 6391, 6792, 6969, 7444, 7892, 8321, 8530, 8581, 9254, 9299, 9522, 9832, 9847, 10082, 10850
Offset: 1

Views

Author

Altug Alkan, Nov 27 2015

Keywords

Comments

A002110(138) has 327 digits.
What is the minimum value of a(n) - a(n-1)?

Crossrefs

Programs

  • Mathematica
    Select[Range@ 10000, Divisible[Product[Prime@ k, {k, #}], Sum[Prime[k]^3, {k, #}]] &] (* Michael De Vlieger, Nov 28 2015 *)
  • PARI
    for(n=1, 11000, if(prod(k=1, n, prime(k)) % sum(k=1, n, prime(k)^3) == 0, print1(n, ", ")))