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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.

A301417 Sums of positive coefficients in generalized Chebyshev polynomials of the first kind, for a family of 4 data.

Table of values

n a(n)
1 1
2 4
3 19
4 98
5 516
6 2725
7 14400
8 76105
9 402229
10 2125864
11 11235643
12 59382770
13 313850616
14 1658767513
15 8766940464
16 46335152161
17 244891172089
18 1294302130684
19 6840663104371
20 36154365042098
21 191083538489436
22 1009917298758493
23 5337628549243344
24 28210506508524169

List of values

[1, 4, 19, 98, 516, 2725, 14400, 76105, 402229, 2125864, 11235643, 59382770, 313850616, 1658767513, 8766940464, 46335152161, 244891172089, 1294302130684, 6840663104371, 36154365042098, 191083538489436, 1009917298758493, 5337628549243344, 28210506508524169]

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

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