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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.

A089816 a(n) = floor((n+3)^(n+2)/((n+3)^2-1)).

Table of values

n a(n)
0 1
1 4
2 26
3 222
4 2451
5 33288
6 538084
7 10101010
8 216145205
9 5195862732
10 138679078110
11 4070332170534
12 130325562613351
13 4521260802379792
14 168962471790509960
15 6767528048726614650
16 289242639716420115369

List of values

[1, 4, 26, 222, 2451, 33288, 538084, 10101010, 216145205, 5195862732, 138679078110, 4070332170534, 130325562613351, 4521260802379792, 168962471790509960, 6767528048726614650, 289242639716420115369]

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

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