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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.

A344418 a(n) = n*a(n-1) + n^(1+n mod 2), a(0) = 0.

Table of values

n a(n)
0 0
1 1
2 4
3 13
4 56
5 281
6 1692
7 11845
8 94768
9 852913
10 8529140
11 93820541
12 1125846504
13 14636004553
14 204904063756
15 3073560956341
16 49176975301472
17 836008580125025
18 15048154442250468
19 285914934402758893
20 5718298688055177880
21 120084272449158735481
22 2641853993881492180604

List of values

[0, 1, 4, 13, 56, 281, 1692, 11845, 94768, 852913, 8529140, 93820541, 1125846504, 14636004553, 204904063756, 3073560956341, 49176975301472, 836008580125025, 15048154442250468, 285914934402758893, 5718298688055177880, 120084272449158735481, 2641853993881492180604]

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

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