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.

A275508 First occurrence of a run of exactly n consecutive integers with an even number of prime factors.

Table of values

n a(n)
1 1
2 9
3 14
4 33
5 54
6 201
7 140
8 2170
9 213
10 4529
11 10403
12 1934
13 35811
14 162144
15 38405
16 414225
17 200938
18 389409
19 1792209
20 5606457
21 18493931
22 30947532
23 61190563
24 8405437
25 203631499
26 577699919
27 158280474
28 68780189
29 4082994208
30 3944563444

List of values

[1, 9, 14, 33, 54, 201, 140, 2170, 213, 4529, 10403, 1934, 35811, 162144, 38405, 414225, 200938, 389409, 1792209, 5606457, 18493931, 30947532, 61190563, 8405437, 203631499, 577699919, 158280474, 68780189, 4082994208, 3944563444]

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

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