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.

A228938 E.g.f.: (2 + exp(3*x)) / (4 - exp(3*x)).

Table of values

n a(n)
0 1
1 2
2 10
3 66
4 570
5 6162
6 80010
7 1212066
8 20983770
9 408687282
10 8844164010
11 210530630466
12 5467167038970
13 153805368043602
14 4659779072312010
15 151259403573751266
16 5237308594356166170
17 192673897986624475122
18 7505181282611209004010
19 308589102795660836942466

List of values

[1, 2, 10, 66, 570, 6162, 80010, 1212066, 20983770, 408687282, 8844164010, 210530630466, 5467167038970, 153805368043602, 4659779072312010, 151259403573751266, 5237308594356166170, 192673897986624475122, 7505181282611209004010, 308589102795660836942466]