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.

A245466 a(n) = sigma_1(1) + sigma_2(2) + sigma_3(3) + ... + sigma_n-1(n-1) + sigma_n(n).

Table of values

n a(n)
1 1
2 6
3 34
4 307
5 3433
6 50883
7 874427
8 17717436
9 405157609
10 10414924259
11 295726594871
12 9214021138217
13 312089127730471
14 11424774176377721
15 449318695089164129
16 18896344248070459234
17 846136606134407223412
18 40192694877626586149007
19 2018612350537940175272987

List of values

[1, 6, 34, 307, 3433, 50883, 874427, 17717436, 405157609, 10414924259, 295726594871, 9214021138217, 312089127730471, 11424774176377721, 449318695089164129, 18896344248070459234, 846136606134407223412, 40192694877626586149007, 2018612350537940175272987]

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

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