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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.

A349071 a(n) = T(n, 2*n), where T(n, x) is the Chebyshev polynomial of the first kind.

Table of values

n a(n)
0 1
1 2
2 31
3 846
4 32257
5 1580050
6 94558751
7 6686381534
8 545471324161
9 50428155189474
10 5210183616019999
11 594949288292777902
12 74404881332329766401
13 10114032809617941274226
14 1484781814660796486716447
15 234114571438498509048719550
16 39459584112457284328544403457

List of values

[1, 2, 31, 846, 32257, 1580050, 94558751, 6686381534, 545471324161, 50428155189474, 5210183616019999, 594949288292777902, 74404881332329766401, 10114032809617941274226, 1484781814660796486716447, 234114571438498509048719550, 39459584112457284328544403457]

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

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