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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.

A289415 a(n) = ((11-sqrt(11))^n + (11+sqrt(11))^n) / 2.

Table of values

n a(n)
0 1
1 11
2 132
3 1694
4 22748
5 314116
6 4408272
7 62429224
8 888533008
9 12680511536
10 181232622912
11 2592261435104
12 37094163051968
13 530922829281856
14 7599944308484352
15 108797263565651584
16 1557545924511056128
17 22298311347021560576
18 319232797938258158592

List of values

[1, 11, 132, 1694, 22748, 314116, 4408272, 62429224, 888533008, 12680511536, 181232622912, 2592261435104, 37094163051968, 530922829281856, 7599944308484352, 108797263565651584, 1557545924511056128, 22298311347021560576, 319232797938258158592]

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

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