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.

A231897 a(n) = smallest m such that wt(m^2) = n (where wt(i) = A000120(i)), or -1 if no such m exists.

Table of values

n a(n)
0 0
1 1
2 3
3 5
4 13
5 11
6 21
7 39
8 45
9 75
10 155
11 217
12 331
13 181
14 627
15 923
16 1241
17 2505
18 3915
19 5221
20 6475
21 11309
22 15595
23 19637
24 31595
25 44491
26 69451
27 113447
28 185269
29 244661
30 357081
31 453677
32 1015143
33 908091
34 980853
35 2960011
36 4568757
37 2965685
38 5931189
39 11862197
40 20437147

List of values

[0, 1, 3, 5, 13, 11, 21, 39, 45, 75, 155, 217, 331, 181, 627, 923, 1241, 2505, 3915, 5221, 6475, 11309, 15595, 19637, 31595, 44491, 69451, 113447, 185269, 244661, 357081, 453677, 1015143, 908091, 980853, 2960011, 4568757, 2965685, 5931189, 11862197, 20437147]