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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.

A122898 Expansion of (sqrt(21*x^2 - 10*x + 1) + 7*x - 1) / (2*x*(1 - 7*x)).

Table of values

n a(n)
0 1
1 6
2 37
3 233
4 1491
5 9660
6 63195
7 416610
8 2763595
9 18426026
10 123375927
11 829053197
12 5588050069
13 37764371676
14 255800207277
15 1736181639585
16 11804962371795
17 80394249836010
18 548283258074895
19 3744067955618403
20 25596986050620681

List of values

[1, 6, 37, 233, 1491, 9660, 63195, 416610, 2763595, 18426026, 123375927, 829053197, 5588050069, 37764371676, 255800207277, 1736181639585, 11804962371795, 80394249836010, 548283258074895, 3744067955618403, 25596986050620681]

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

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