A304909 - cp's OEIS frontend

A304909 Expansion of x * (d/dx) Product_{k>=0} 1/(1 - x^(2^k)).

n	a(n)
0	0
1	1
2	4
3	6
4	16
5	20
6	36
7	42
8	80
9	90
10	140
11	154
12	240
13	260
14	364
15	390
16	576
17	612
18	828
19	874
20	1200
21	1260
22	1628
23	1702
24	2256
25	2350
26	2964
27	3078
28	3920
29	4060
30	4980
31	5146
32	6464
33	6666
34	8092
35	8330
36	10224
37	10508
38	12540
39	12870
40	15600
41	15990
42	18900
43	19350
44	23056
45	23580
46	27508
47	28106
48	33216
49	33908

[0, 1, 4, 6, 16, 20, 36, 42, 80, 90, 140, 154, 240, 260, 364, 390, 576, 612, 828, 874, 1200, 1260, 1628, 1702, 2256, 2350, 2964, 3078, 3920, 4060, 4980, 5146, 6464, 6666, 8092, 8330, 10224, 10508, 12540, 12870, 15600, 15990, 18900, 19350, 23056, 23580, 27508, 28106, 33216, 33908]

cp's OEIS Frontend

A304909 Expansion of x * (d/dx) Product_{k>=0} 1/(1 - x^(2^k)).

Table of values

List of values