A269144 - cp's OEIS frontend

A269144 Expansion of Product_{k>=1} ((1 + kx^k) / (1 - 2x^k)).

n	a(n)
0	1
1	3
2	10
3	29
4	77
5	195
6	475
7	1115
8	2546
9	5706
10	12528
11	27106
12	57893
13	122299
14	255995
15	531816
16	1097377
17	2252151
18	4600835
19	9362334
20	18990645
21	38418370
22	77548880
23	156251955
24	314363615
25	631703790
26	1268148900
27	2543812090
28	5099469848
29	10217529291
30	20464112218

[1, 3, 10, 29, 77, 195, 475, 1115, 2546, 5706, 12528, 27106, 57893, 122299, 255995, 531816, 1097377, 2252151, 4600835, 9362334, 18990645, 38418370, 77548880, 156251955, 314363615, 631703790, 1268148900, 2543812090, 5099469848, 10217529291, 20464112218]

cp's OEIS Frontend

A269144 Expansion of Product_{k>=1} ((1 + kx^k) / (1 - 2x^k)).

Table of values

List of values

cp's OEIS Frontend

A269144 Expansion of Product_{k>=1} ((1 + k*x^k) / (1 - 2*x^k)).

Table of values

List of values

A269144 Expansion of Product_{k>=1} ((1 + kx^k) / (1 - 2x^k)).