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.

A357830 a(n) = Sum_{k=0..floor((n-2)/3)} |Stirling1(n,3*k+2)|.

Table of values

n a(n)
0 0
1 0
2 1
3 3
4 11
5 51
6 289
7 1939
8 15029
9 132069
10 1296771
11 14063721
12 166897059
13 2150579067
14 29895590361
15 445871456667
16 7100686041813
17 120249378265653
18 2157637558311963
19 40887284144179473
20 815949872494416387
21 17103401793743095467
22 375692072337527815233

List of values

[0, 0, 1, 3, 11, 51, 289, 1939, 15029, 132069, 1296771, 14063721, 166897059, 2150579067, 29895590361, 445871456667, 7100686041813, 120249378265653, 2157637558311963, 40887284144179473, 815949872494416387, 17103401793743095467, 375692072337527815233]

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

Content is available under The OEIS End-User License Agreement.