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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.

A357835 a(n) = Sum_{k=0..floor((n-1)/3)} Stirling1(n,3*k+1).

Table of values

n a(n)
0 0
1 1
2 -1
3 2
4 -5
5 14
6 -35
7 -14
8 1701
9 -26418
10 351351
11 -4622982
12 62705643
13 -890078826
14 13297263525
15 -209438953542
16 3477446002485
17 -60803484275898
18 1117975706702127
19 -21580455768575886
20 436591651807054107
21 -9241512424454751714
22 204338436416329792941

List of values

[0, 1, -1, 2, -5, 14, -35, -14, 1701, -26418, 351351, -4622982, 62705643, -890078826, 13297263525, -209438953542, 3477446002485, -60803484275898, 1117975706702127, -21580455768575886, 436591651807054107, -9241512424454751714, 204338436416329792941]

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

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