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.

A351053 G.f. A(x) satisfies: A(x) = x + x^2 * A(x/(1 - 3*x)) / (1 - 3*x).

Table of values

n a(n)
0 0
1 1
2 0
3 1
4 6
5 28
6 126
7 613
8 3438
9 22159
10 157362
11 1189126
12 9436320
13 78690781
14 692478684
15 6439539457
16 63106488618
17 648453907216
18 6952719052134
19 77521908188737
20 897132401326458
21 10764085132255807
22 133774484448519294
23 1720018195807299418
24 22847325911461934352

List of values

[0, 1, 0, 1, 6, 28, 126, 613, 3438, 22159, 157362, 1189126, 9436320, 78690781, 692478684, 6439539457, 63106488618, 648453907216, 6952719052134, 77521908188737, 897132401326458, 10764085132255807, 133774484448519294, 1720018195807299418, 22847325911461934352]