A369343 - cp's OEIS frontend

A369343 a(n) is the constant term in expansion of Product_{k=1..n} (x^(2k-1) + 1 + 1/x^(2k-1)).

n	a(n)
0	1
1	1
2	1
3	1
4	3
5	9
6	21
7	49
8	117
9	295
10	761
11	1993
12	5261
13	14025
14	37699
15	102151
16	278587
17	764145
18	2106433
19	5832863
20	16217191
21	45255167
22	126708863
23	355848715
24	1002145705
25	2829479797
26	8007670701
27	22711890561
28	64547494347
29	183790615881
30	524239904367
31	1497786769295

[1, 1, 1, 1, 3, 9, 21, 49, 117, 295, 761, 1993, 5261, 14025, 37699, 102151, 278587, 764145, 2106433, 5832863, 16217191, 45255167, 126708863, 355848715, 1002145705, 2829479797, 8007670701, 22711890561, 64547494347, 183790615881, 524239904367, 1497786769295]

cp's OEIS Frontend

A369343 a(n) is the constant term in expansion of Product_{k=1..n} (x^(2k-1) + 1 + 1/x^(2k-1)).

Table of values

List of values

cp's OEIS Frontend

A369343 a(n) is the constant term in expansion of Product_{k=1..n} (x^(2*k-1) + 1 + 1/x^(2*k-1)).

Table of values

List of values

A369343 a(n) is the constant term in expansion of Product_{k=1..n} (x^(2k-1) + 1 + 1/x^(2k-1)).