A214691 - cp's OEIS frontend

A214691 G.f.: A(x) = Sum_{n>=0} x^n * Product_{k=1..n} (2^(2k-1) - 1) / (1 + 2^(2k-1)*x).

n	a(n)
0	1
1	1
2	5
3	151
4	19025
5	9702751
6	19851828545
7	162586475783551
8	5327308465523832065
9	698250320576208668759551
10	366082867573618138109269955585
11	767730685732013278335855487355082751
12	6440190236715680978727827356359771295535105

[1, 1, 5, 151, 19025, 9702751, 19851828545, 162586475783551, 5327308465523832065, 698250320576208668759551, 366082867573618138109269955585, 767730685732013278335855487355082751, 6440190236715680978727827356359771295535105]

cp's OEIS Frontend

A214691 G.f.: A(x) = Sum_{n>=0} x^n * Product_{k=1..n} (2^(2k-1) - 1) / (1 + 2^(2k-1)*x).

Table of values

List of values

cp's OEIS Frontend

A214691 G.f.: A(x) = Sum_{n>=0} x^n * Product_{k=1..n} (2^(2*k-1) - 1) / (1 + 2^(2*k-1)*x).

Table of values

List of values

A214691 G.f.: A(x) = Sum_{n>=0} x^n * Product_{k=1..n} (2^(2k-1) - 1) / (1 + 2^(2k-1)*x).