A338673 - cp's OEIS frontend

A338673 Expansion of Product_{k>=1} 1 / (1 - 4^(k-1)*x^k).

n	a(n)
0	1
1	1
2	5
3	21
4	101
5	421
6	2021
7	8421
8	39397
9	167397
10	766437
11	3244517
12	14881253
13	62804453
14	283415013
15	1210159589
16	5401907685
17	22966866405
18	102497423845
19	435085808101
20	1925197238757
21	8215432696293
22	36068400468453
23	153579729097189
24	674546796630501
25	2866238341681637
26	12508012102193637

[1, 1, 5, 21, 101, 421, 2021, 8421, 39397, 167397, 766437, 3244517, 14881253, 62804453, 283415013, 1210159589, 5401907685, 22966866405, 102497423845, 435085808101, 1925197238757, 8215432696293, 36068400468453, 153579729097189, 674546796630501, 2866238341681637, 12508012102193637]

cp's OEIS Frontend

A338673 Expansion of Product_{k>=1} 1 / (1 - 4^(k-1)*x^k).

Table of values

List of values