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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.

A121823 (3^p+p)/(p+1) with (p + 1) odd prime > 3.

Table of values

n a(n)
1 17
2 105
3 5369
4 40881
5 2532161
6 20390553
7 1364393897
8 788854912241
9 6641649422409
10 4056611764783761
11 296528425830656801
12 2544627654221217657
13 188573151481968108425
14 121907205457107043376081
15 79832689783834658219010233
16 694937020905183664168761201
17 461241110188546453162994653785
18 35255711337932980300219323747689

List of values

[17, 105, 5369, 40881, 2532161, 20390553, 1364393897, 788854912241, 6641649422409, 4056611764783761, 296528425830656801, 2544627654221217657, 188573151481968108425, 121907205457107043376081, 79832689783834658219010233, 694937020905183664168761201, 461241110188546453162994653785, 35255711337932980300219323747689]

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

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