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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.

A269153 Expansion of Product_{k>=1} ((1 - k*x^k) / (1 - 2*x^k)).

Table of values

n a(n)
0 1
1 1
2 2
3 3
4 5
5 9
6 15
7 33
8 62
9 130
10 264
11 554
12 1081
13 2237
14 4483
15 8952
16 17933
17 35921
18 71755
19 143502
20 286713
21 573198
22 1146540
23 2292277
24 4584087
25 9166802
26 18334880
27 36668210
28 73336840
29 146672469
30 293348402
31 586695560
32 1173398119
33 2346805311
34 4693617598
35 9387229673

List of values

[1, 1, 2, 3, 5, 9, 15, 33, 62, 130, 264, 554, 1081, 2237, 4483, 8952, 17933, 35921, 71755, 143502, 286713, 573198, 1146540, 2292277, 4584087, 9166802, 18334880, 36668210, 73336840, 146672469, 293348402, 586695560, 1173398119, 2346805311, 4693617598, 9387229673]