A207653 - cp's OEIS frontend

A207653 G.f.: Sum_{n>=0} Product_{k=1..n} (1 - (1-x)^(2k-1))/(1 - x^(2k-1)).

n	a(n)
0	1
1	1
2	4
3	16
4	77
5	460
6	3287
7	27561
8	265307
9	2880875
10	34821316
11	463543454
12	6737545832
13	106158368798
14	1802204594518
15	32793160634292
16	636683459975767
17	13137118248246982
18	287070448575006268
19	6622644707103106925
20	160846900060253917905
21	4102379491083664461080

[1, 1, 4, 16, 77, 460, 3287, 27561, 265307, 2880875, 34821316, 463543454, 6737545832, 106158368798, 1802204594518, 32793160634292, 636683459975767, 13137118248246982, 287070448575006268, 6622644707103106925, 160846900060253917905, 4102379491083664461080]

cp's OEIS Frontend

A207653 G.f.: Sum_{n>=0} Product_{k=1..n} (1 - (1-x)^(2k-1))/(1 - x^(2k-1)).

Table of values

List of values

cp's OEIS Frontend

A207653 G.f.: Sum_{n>=0} Product_{k=1..n} (1 - (1-x)^(2*k-1))/(1 - x^(2*k-1)).

Table of values

List of values

A207653 G.f.: Sum_{n>=0} Product_{k=1..n} (1 - (1-x)^(2k-1))/(1 - x^(2k-1)).