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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.

A355950 a(n) = Sum_{k=1..n} k^(k-1) * floor(n/k).

Table of values

n a(n)
1 1
2 4
3 14
4 81
5 707
6 8495
7 126145
8 2223364
9 45270095
10 1045270723
11 26982695325
12 769991073865
13 24068076196347
14 817782849568143
15 30010708874959403
16 1182932213483903598
17 49844124089150772080
18 2235755683827890358557
19 106363105981739131891399

List of values

[1, 4, 14, 81, 707, 8495, 126145, 2223364, 45270095, 1045270723, 26982695325, 769991073865, 24068076196347, 817782849568143, 30010708874959403, 1182932213483903598, 49844124089150772080, 2235755683827890358557, 106363105981739131891399]

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

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