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.

A306442 Greatest integer N such that the number of base-n-zero containing numbers [<= N] <= the number of base-n-zerofree numbers [<= N].

Table of values

n a(n)
2 3
3 27
4 131
5 679
6 7809
7 34211
8 274511
9 4793487
10 20327615
11 222222219
12 5187484917
13 31896823991
14 298693399003
15 8722140365427
16 70433726283479
17 600479950316063
18 21047228319925113
19 252325338960485915
20 3284805263774079161
21 68985263157894736839

List of values

[3, 27, 131, 679, 7809, 34211, 274511, 4793487, 20327615, 222222219, 5187484917, 31896823991, 298693399003, 8722140365427, 70433726283479, 600479950316063, 21047228319925113, 252325338960485915, 3284805263774079161, 68985263157894736839]

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

Content is available under The OEIS End-User License Agreement.