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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.

A349076 a(n) = U(n, 3*n), where U(n, x) is the Chebyshev polynomial of the second kind.

Table of values

n a(n)
0 1
1 6
2 143
3 5796
4 330049
5 24192090
6 2168392031
7 229755926568
8 28093745899009
9 3893604149949966
10 603151411514453999
11 103272803655639197580
12 19367259480582106560193
13 3947962681769909551857186
14 869179946261864224288867775
15 205535515565731164929726435280

List of values

[1, 6, 143, 5796, 330049, 24192090, 2168392031, 229755926568, 28093745899009, 3893604149949966, 603151411514453999, 103272803655639197580, 19367259480582106560193, 3947962681769909551857186, 869179946261864224288867775, 205535515565731164929726435280]

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

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