A348409 a(n) is the greatest k such that A307730(k) = n.
1, 3, 6, 11, 51, 16, 58, 34, 25, 69, 1384, 45, 1397, 82, 97, 152, 3754, 115, 3773, 223, 135, 1420, 6702, 175, 344, 1445, 202, 251, 6731, 374, 84656, 283, 1479, 3808, 409, 318, 84693, 3845, 1617, 541, 89520, 451, 89563, 1523, 689, 6778, 91878, 589, 500, 1073
Offset: 1
Keywords
Examples
For n = 6: - sequence A307730 starts: 1, 2, 2, 3, 3, 3, 6, 4, 4, 4, 4, 6, 6, 6, 6, 6, - the sixth occurrence of 6 appears at position 16, - so a(6) = 16.
Links
- Rémy Sigrist, Table of n, a(n) for n = 1..10000
- Rémy Sigrist, C program for A348409
Programs
-
C
See Links section.
Formula
a(n) - A348246(n) >= n - 1.