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.

A184018 Expansion of c(x/(1-x-x^2)) / (1-x-x^2), c(x) the g.f. of A000108.

Table of values

n a(n)
0 1
1 2
2 6
3 19
4 67
5 254
6 1017
7 4236
8 18168
9 79680
10 355635
11 1609912
12 7373401
13 34102976
14 159055728
15 747211753
16 3532452169
17 16792693562
18 80224098381
19 384948157635
20 1854469572120
21 8965866981294
22 43488834409737
23 211569299607282

List of values

[1, 2, 6, 19, 67, 254, 1017, 4236, 18168, 79680, 355635, 1609912, 7373401, 34102976, 159055728, 747211753, 3532452169, 16792693562, 80224098381, 384948157635, 1854469572120, 8965866981294, 43488834409737, 211569299607282]

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

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