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.

A340689 Numbers with a factorization of length 2^k into factors > 1, where k is the greatest factor.

Table of values

n a(n)
1 1
2 16
3 384
4 576
5 864
6 1296
7 1944
8 2916
9 4374
10 6561
11 131072
12 196608
13 262144
14 294912
15 393216
16 442368
17 524288
18 589824
19 663552
20 786432
21 884736
22 995328
23 1048576
24 1179648
25 1327104
26 1492992
27 1572864
28 1769472
29 1990656
30 2097152
31 2239488
32 2359296
33 2654208
34 2985984
35 3145728

List of values

[1, 16, 384, 576, 864, 1296, 1944, 2916, 4374, 6561, 131072, 196608, 262144, 294912, 393216, 442368, 524288, 589824, 663552, 786432, 884736, 995328, 1048576, 1179648, 1327104, 1492992, 1572864, 1769472, 1990656, 2097152, 2239488, 2359296, 2654208, 2985984, 3145728]