cp's OEIS Frontend

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.

A002430 Numerators in Taylor series for tan(x). Also from Taylor series for tanh(x).

Table of values

n a(n)
1 1
2 1
3 2
4 17
5 62
6 1382
7 21844
8 929569
9 6404582
10 443861162
11 18888466084
12 113927491862
13 58870668456604
14 8374643517010684
15 689005380505609448
16 129848163681107301953
17 1736640792209901647222
18 418781231495293038913922

List of values

[1, 1, 2, 17, 62, 1382, 21844, 929569, 6404582, 443861162, 18888466084, 113927491862, 58870668456604, 8374643517010684, 689005380505609448, 129848163681107301953, 1736640792209901647222, 418781231495293038913922]

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

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