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.

A351437 G.f. A(x) satisfies: A(x) = 1 + x + x^2 * A(x/(1 - x)) / (1 - x)^2.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 7
5 17
6 47
7 145
8 481
9 1691
10 6295
11 24805
12 103095
13 449805
14 2052081
15 9762699
16 48334855
17 248568321
18 1325297879
19 7312927481
20 41694974649
21 245288605059
22 1487041552343
23 9279329735685
24 59537092965663
25 392371097100373
26 2653606218921673
27 18400405626141667
28 130712743774279015

List of values

[1, 1, 1, 3, 7, 17, 47, 145, 481, 1691, 6295, 24805, 103095, 449805, 2052081, 9762699, 48334855, 248568321, 1325297879, 7312927481, 41694974649, 245288605059, 1487041552343, 9279329735685, 59537092965663, 392371097100373, 2653606218921673, 18400405626141667, 130712743774279015]

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

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