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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.

A075589 Primes p such that the number of distinct prime divisors of all composite numbers between p and the next prime is 9.

Table of values

n a(n)
1 89
2 151
3 233
4 257
5 263
6 271
7 353
8 367
9 373
10 503
11 541
12 571
13 587
14 601
15 647
16 653
17 727
18 733
19 751
20 977
21 991
22 1013
23 1181
24 1291
25 1321
26 1433
27 1453
28 1621
29 1753
30 1861
31 2281
32 2371
33 2377
34 2671
35 3061
36 3079
37 3203
38 3323
39 3793
40 4051
41 4073
42 4283
43 4357
44 4519
45 4591
46 4639

List of values

[89, 151, 233, 257, 263, 271, 353, 367, 373, 503, 541, 571, 587, 601, 647, 653, 727, 733, 751, 977, 991, 1013, 1181, 1291, 1321, 1433, 1453, 1621, 1753, 1861, 2281, 2371, 2377, 2671, 3061, 3079, 3203, 3323, 3793, 4051, 4073, 4283, 4357, 4519, 4591, 4639]

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

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