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.

A356425 Sum of divisors of numbers of least prime signature: a(n) = A000203(A025487(n)).

Table of values

n a(n)
1 1
2 3
3 7
4 12
5 15
6 28
7 31
8 60
9 72
10 63
11 91
12 124
13 168
14 127
15 195
16 252
17 360
18 255
19 403
20 546
21 508
22 576
23 600
24 744
25 511
26 819
27 1170
28 1020
29 1344
30 1240
31 1512
32 1023
33 1651
34 2418
35 2044
36 2880
37 2520
38 2821
39 3048
40 2047
41 3600
42 3315
43 4368
44 3751
45 4914
46 4092
47 5952
48 5080
49 6045
50 6120

List of values

[1, 3, 7, 12, 15, 28, 31, 60, 72, 63, 91, 124, 168, 127, 195, 252, 360, 255, 403, 546, 508, 576, 600, 744, 511, 819, 1170, 1020, 1344, 1240, 1512, 1023, 1651, 2418, 2044, 2880, 2520, 2821, 3048, 2047, 3600, 3315, 4368, 3751, 4914, 4092, 5952, 5080, 6045, 6120]

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

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