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.

A321494 Numbers k such that k and k+1 have at least 4 but not both exactly 4 distinct prime factors.

Table of values

n a(n)
1 38570
2 40754
3 51414
4 51765
5 58695
6 60605
7 62985
8 66044
9 68585
10 70889
11 71070
12 73185
13 73814
14 74865
15 77349
16 82004
17 83265
18 83720
19 83979
20 85085
21 87009
22 90804
23 90915
24 91805
25 91884
26 92378
27 94094
28 94829
29 96459
30 97565
31 98769
32 98889
33 100814
34 101269
35 101660
36 104005
37 104754
38 105468
39 107184
40 108030
41 108185
42 108965

List of values

[38570, 40754, 51414, 51765, 58695, 60605, 62985, 66044, 68585, 70889, 71070, 73185, 73814, 74865, 77349, 82004, 83265, 83720, 83979, 85085, 87009, 90804, 90915, 91805, 91884, 92378, 94094, 94829, 96459, 97565, 98769, 98889, 100814, 101269, 101660, 104005, 104754, 105468, 107184, 108030, 108185, 108965]

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

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