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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.

A349117 a(n) = Sum_{m=1..n} (Sum_{k=1..m} (Sum_{j=1..k} j^k)).

Table of values

n a(n)
1 1
2 7
3 49
4 445
5 5266
6 77258
7 1349554
8 27306462
9 627568355
10 16142172173
11 459332766227
12 14324480721391
13 485783513552956
14 17798331858727376
15 700589353757045796
16 29484907446960975744
17 1321168518044435497005
18 62795290373559355285155
19 3155553461189975793914005

List of values

[1, 7, 49, 445, 5266, 77258, 1349554, 27306462, 627568355, 16142172173, 459332766227, 14324480721391, 485783513552956, 17798331858727376, 700589353757045796, 29484907446960975744, 1321168518044435497005, 62795290373559355285155, 3155553461189975793914005]

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

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