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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.

A357829 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 7
5 34
6 205
7 1456
8 11837
9 108150
10 1096011
11 12196128
12 147814359
13 1938062490
14 27333191613
15 412614191808
16 6638401596645
17 113398127795862
18 2049808094564139
19 39091473755006400
20 784404343854767727
21 16520634668922810426
22 364400233756422553053

List of values

[0, 1, 1, 2, 7, 34, 205, 1456, 11837, 108150, 1096011, 12196128, 147814359, 1938062490, 27333191613, 412614191808, 6638401596645, 113398127795862, 2049808094564139, 39091473755006400, 784404343854767727, 16520634668922810426, 364400233756422553053]

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

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