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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.

A193050 G.f. A(x) satisfies: 1 = Sum_{n>=0} x^n*A(-x)^A003059(n+1), where A003059 is defined by "n appears 2n-1 times.".

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 4
5 8
6 17
7 38
8 87
9 204
10 489
11 1191
12 2938
13 7328
14 18448
15 46809
16 119583
17 307324
18 793965
19 2060770
20 5371156
21 14051901
22 36887289
23 97131351
24 256488187
25 679046184
26 1802047427
27 4792800096
28 12773166908
29 34106055493
30 91228795961
31 244427136822
32 655900969465

List of values

[1, 1, 1, 2, 4, 8, 17, 38, 87, 204, 489, 1191, 2938, 7328, 18448, 46809, 119583, 307324, 793965, 2060770, 5371156, 14051901, 36887289, 97131351, 256488187, 679046184, 1802047427, 4792800096, 12773166908, 34106055493, 91228795961, 244427136822, 655900969465]

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

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