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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.

A193036 G.f. A(x) satisfies: x = Sum_{n>=1} x^n*A(-x)^A006519(n), where A006519(n) is the highest power of 2 dividing n.

Table of values

n a(n)
0 1
1 1
2 1
3 3
4 10
5 34
6 112
7 382
8 1352
9 4884
10 17856
11 66022
12 246764
13 930878
14 3538788
15 13542716
16 52133416
17 201746212
18 784378792
19 3062431132
20 12001867312
21 47197716460
22 186187480816
23 736582735738
24 2921679555340
25 11617001425938
26 46294191726972
27 184866924629832

List of values

[1, 1, 1, 3, 10, 34, 112, 382, 1352, 4884, 17856, 66022, 246764, 930878, 3538788, 13542716, 52133416, 201746212, 784378792, 3062431132, 12001867312, 47197716460, 186187480816, 736582735738, 2921679555340, 11617001425938, 46294191726972, 184866924629832]

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

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