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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.

A383740 a(0) = 4; a(n) = Pell(4*n)/Pell(n) for n > 0.

Table of values

n a(n)
0 4
1 12
2 204
3 2772
4 39236
5 551532
6 7761996
7 109216308
8 1536797956
9 21624369228
10 304278011724
11 4281516425748
12 60245508232004
13 847718631046572
14 11928306344398284
15 167844007448966772
16 2361744410638758916
17 33232265756370284172
18 467613464999874177996
19 6579820775754484587348

List of values

[4, 12, 204, 2772, 39236, 551532, 7761996, 109216308, 1536797956, 21624369228, 304278011724, 4281516425748, 60245508232004, 847718631046572, 11928306344398284, 167844007448966772, 2361744410638758916, 33232265756370284172, 467613464999874177996, 6579820775754484587348]

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

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