A048826 a(n) = least k such that A048825(k) = n.
2, 3, 5, 19, 1093, 12721, 4062241
Offset: 0
Crossrefs
Cf. A048827.
Extensions
a(6) from Max Alekseyev, Jun 13 2011
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.
From _David A. Corneth_, Jun 05 2020: (Start) For n = 19 we get to 2 via n := 19 - 1 = 2 (+1 point as we subtract 1 from n) n := 18/3 = 6 (+0 point as we divide by a divisor) n := 6/2 = 3 (+0 point, we divide by a divisor. we can't divide by 3 as 3 > sqrt(6)). n := 3 - 1 = 2 (+1 point; steps end here; we have n = 2) We earned 2 points in these steps. As this is the minimal number of points starting at n = 19, a(19) = 2. (End)
\\ see Corneth link \\ David A. Corneth, Jun 05 2020