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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.

A344752 Quotient A306927(k) / A344705(k) computed for such k >= 1 that the quotient is a nonnegative natural number. (The k are given by A344700.)

Original entry on oeis.org

0, 1, 2, 1, 3, 1, 12, 21, 2, 3, 36, 4, 4, 61, 2, 3, 5, 243, 36, 2, 1, 70, 345, 90, 5, 5, 38, 11, 3, 131, 25, 87, 172, 2, 9, 5, 228, 5, 20, 43, 18, 5, 10, 304, 3, 1035, 31, 1301, 7, 172, 8, 554, 60, 15, 295, 59, 14, 150, 110, 7, 2439, 258, 371, 5, 549, 8, 13, 15, 63, 1134, 24, 900, 23, 50, 7, 4, 27, 1292, 254, 6681, 5, 18
Offset: 1

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Author

Antti Karttunen, May 28 2021

Keywords

Crossrefs

Programs

  • PARI
    A001615(n) = if(1==n,n, my(f=factor(n)); prod(i=1, #f~, f[i, 1]^f[i, 2] + f[i, 1]^(f[i, 2]-1))); \\ After code in A001615
    isA344700_and_give_quotient(n) = { my(t=A001615(n), s=sigma(n), u = (n+t)-s); if(((u>0)&&(0==((t-n)%u))), ((t-n)/u), 0); };
    for(n=1,2^17,x=isA344700_and_give_quotient(n); if(x>0||(1==n), print1(x,", ")));