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.

A376445 Numbers k such that A374941(k) > k.

Original entry on oeis.org

24, 36, 48, 60, 72, 84, 90, 96, 108, 120, 132, 144, 160, 168, 180, 192, 210, 216, 240, 252, 264, 270, 280, 288, 300, 312, 320, 336, 360, 384, 396, 408, 420, 432, 456, 468, 480, 504, 528, 540, 552, 560, 576, 600, 612, 624, 630, 640, 648, 660, 672, 684, 696, 720
Offset: 1

Views

Author

Tanmaya Mohanty, Sep 22 2024

Keywords

Examples

			24 is a term because A374941(24) = 28 > 24.
		

Crossrefs

Programs

  • Python
    from sympy import divisors, isprime
    from functools import cache
    @cache
    def f(n): return sum(di if isprime(di) else f(di) for di in divisors(n)[1:-1])
    def ok(n): return f(n) > n
    print([k for k in range(1, 801) if ok(k)]) # Michael S. Branicky, Sep 23 2024