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.

A360904 Numbers k such that k and k+1 both have the same number of squarefree divisors and powerful divisors.

Table of values

n a(n)
1 48
2 2511
3 5328
4 6723
5 7856
6 10287
7 15471
8 15632
9 16640
10 18063
11 20816
12 28592
13 33124
14 36368
15 38799
16 39600
17 40400
18 40816
19 54512
20 57121
21 60624
22 67472
23 75248
24 79375
25 83024
26 88047
27 93231
28 101168
29 119375
30 126927
31 134703
32 137456
33 146688
34 147824
35 148224
36 154448
37 160624

List of values

[48, 2511, 5328, 6723, 7856, 10287, 15471, 15632, 16640, 18063, 20816, 28592, 33124, 36368, 38799, 39600, 40400, 40816, 54512, 57121, 60624, 67472, 75248, 79375, 83024, 88047, 93231, 101168, 119375, 126927, 134703, 137456, 146688, 147824, 148224, 154448, 160624]

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

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