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.

A067654 Numerators of the coefficients in power series expansion of exp(2x/(1-x)).

Table of values

n a(n)
1 2
2 4
3 22
4 38
5 314
6 1504
7 16346
8 24796
9 331906
10 2426404
11 38445118
12 163944598
13 2993870654
14 2647864592
15 601353085846
16 820420721222
17 18874008233858
18 20741357283932
19 5782164084903302
20 38314394323494974
21 1059898973520975218

List of values

[2, 4, 22, 38, 314, 1504, 16346, 24796, 331906, 2426404, 38445118, 163944598, 2993870654, 2647864592, 601353085846, 820420721222, 18874008233858, 20741357283932, 5782164084903302, 38314394323494974, 1059898973520975218]

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

Content is available under The OEIS End-User License Agreement.