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.

A192730 G.f. satisfies: A(x) = 1/(1 - x*A(x)^3/(1 - x^2*A(x)^3/(1 - x^3*A(x)^3/(1 - x^4*A(x)^3/(1 - ...))))), a recursive continued fraction.

Table of values

n a(n)
0 1
1 1
2 4
3 23
4 151
5 1075
6 8075
7 62996
8 505501
9 4145684
10 34594540
11 292794156
12 2507383158
13 21686318745
14 189162110341
15 1662142617881
16 14698913545378
17 130723572694407
18 1168419986539867
19 10490326933563842
20 94564400499455397
21 855552893388047193

List of values

[1, 1, 4, 23, 151, 1075, 8075, 62996, 505501, 4145684, 34594540, 292794156, 2507383158, 21686318745, 189162110341, 1662142617881, 14698913545378, 130723572694407, 1168419986539867, 10490326933563842, 94564400499455397, 855552893388047193]

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

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