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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.

A381250 a(n) = least k with n distinct prime factors such that floor(log_q(k)) = floor(log_p(k))-1, where p is the smallest prime factor of k, and q is any other distinct prime factor of k.

Table of values

n a(n)
0 1
1 2
2 6
3 1001
4 81719
5 101007559
6 84248643949
7 78464111896111
8 997804397813471821
9 1314665322768473913751
10 25030469300030639321689313
11 93516019518175801382127421211
12 1873482639168918364977596279806547
13 60958708904928776821774364389940352443
14 1089851191947047137351117158610882538395561

List of values

[1, 2, 6, 1001, 81719, 101007559, 84248643949, 78464111896111, 997804397813471821, 1314665322768473913751, 25030469300030639321689313, 93516019518175801382127421211, 1873482639168918364977596279806547, 60958708904928776821774364389940352443, 1089851191947047137351117158610882538395561]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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