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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.

A081671 Expansion of e.g.f. exp(4x) * I_0(2x).

Table of values

n a(n)
0 1
1 4
2 18
3 88
4 454
5 2424
6 13236
7 73392
8 411462
9 2325976
10 13233628
11 75682512
12 434662684
13 2505229744
14 14482673832
15 83940771168
16 487610895942
17 2838118247064
18 16547996212044
19 96635257790352
20 565107853947444
21 3308820294176016
22 19395905063796312
23 113814537122646432

List of values

[1, 4, 18, 88, 454, 2424, 13236, 73392, 411462, 2325976, 13233628, 75682512, 434662684, 2505229744, 14482673832, 83940771168, 487610895942, 2838118247064, 16547996212044, 96635257790352, 565107853947444, 3308820294176016, 19395905063796312, 113814537122646432]

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

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