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.

A123389 Ratio of each term of the primorial function to the corresponding term of the factorial function (rounded to nearest integer).

Table of values

n a(n)
1 2
2 3
3 5
4 9
5 19
6 42
7 101
8 241
9 615
10 1783
11 5024
12 15492
13 48860
14 150069
15 470216
16 1557591
17 5405759
18 18319515
19 64600395
20 229331403
21 797199638
22 2862671427
23 10330509932
24 38308974332
25 148638820408
26 577404648509
27 2202691807275
28 8417429406373
29 31637924320505
30 119169514940569

List of values

[2, 3, 5, 9, 19, 42, 101, 241, 615, 1783, 5024, 15492, 48860, 150069, 470216, 1557591, 5405759, 18319515, 64600395, 229331403, 797199638, 2862671427, 10330509932, 38308974332, 148638820408, 577404648509, 2202691807275, 8417429406373, 31637924320505, 119169514940569]

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

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