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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.

A014917 a(1)=1, a(n) = n*5^(n-1) + a(n-1).

Table of values

n a(n)
1 1
2 11
3 86
4 586
5 3711
6 22461
7 131836
8 756836
9 4272461
10 23803711
11 131225586
12 717163086
13 3890991211
14 20980834961
15 112533569336
16 600814819336
17 3194808959961
18 16927719116211
19 89406967163086
20 470876693725586
21 2473592758178711
22 12964010238647461
23 67800283432006836
24 353902578353881836

List of values

[1, 11, 86, 586, 3711, 22461, 131836, 756836, 4272461, 23803711, 131225586, 717163086, 3890991211, 20980834961, 112533569336, 600814819336, 3194808959961, 16927719116211, 89406967163086, 470876693725586, 2473592758178711, 12964010238647461, 67800283432006836, 353902578353881836]

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

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