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.

A346801 Engel expansion of A249270 = lim_{n->oo} (1/n)*Sum_{k=1..n} smallest prime not dividing k.

Table of values

n a(n)
1 1
2 1
3 2
4 2
5 2
6 3
7 13
8 18
9 160
10 162
11 1421
12 1745
13 6097
14 6348
15 15474
16 65948
17 103608
18 366088
19 573005
20 1048188
21 1138953
22 3410520
23 6376825
24 279823002
25 306445433
26 1082288597
27 1489247033
28 2533043524
29 5591690612
30 8082600305
31 22159965172
32 62442143259
33 70275959860

List of values

[1, 1, 2, 2, 2, 3, 13, 18, 160, 162, 1421, 1745, 6097, 6348, 15474, 65948, 103608, 366088, 573005, 1048188, 1138953, 3410520, 6376825, 279823002, 306445433, 1082288597, 1489247033, 2533043524, 5591690612, 8082600305, 22159965172, 62442143259, 70275959860]

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

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