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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.

A098453 Expansion of 1/sqrt(1 - 4*x - 12*x^2).

Table of values

n a(n)
0 1
1 2
2 12
3 56
4 304
5 1632
6 9024
7 50304
8 283392
9 1607168
10 9167872
11 52537344
12 302239744
13 1744412672
14 10096263168
15 58576306176
16 340566147072
17 1983765676032
18 11574393962496
19 67631502065664
20 395710949228544
21 2318088492023808
22 13594307705438208
23 79802741538422784
24 468895276304695296

List of values

[1, 2, 12, 56, 304, 1632, 9024, 50304, 283392, 1607168, 9167872, 52537344, 302239744, 1744412672, 10096263168, 58576306176, 340566147072, 1983765676032, 11574393962496, 67631502065664, 395710949228544, 2318088492023808, 13594307705438208, 79802741538422784, 468895276304695296]

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

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