A370764 - cp's OEIS frontend

A370764 a(n) = 4^n * [x^n] Product_{k>=1} ((1 + 2^(k+1)x^k) (1 + 2^(k-1)*x^k))^(1/2).

n	a(n)
0	1
1	10
2	62
3	1620
4	6966
5	157580
6	1284012
7	19189160
8	73908774
9	2233414620
10	9656822916
11	287668788120
12	-324007115716
13	40151699854200
14	-199460032590312
15	7130611518222160
16	-64971542557275642
17	1292318115470489340
18	-15433712240157937260
19	265667290368470451000
20	-3624776372747687578668

[1, 10, 62, 1620, 6966, 157580, 1284012, 19189160, 73908774, 2233414620, 9656822916, 287668788120, -324007115716, 40151699854200, -199460032590312, 7130611518222160, -64971542557275642, 1292318115470489340, -15433712240157937260, 265667290368470451000, -3624776372747687578668]

cp's OEIS Frontend

A370764 a(n) = 4^n * [x^n] Product_{k>=1} ((1 + 2^(k+1)x^k) (1 + 2^(k-1)*x^k))^(1/2).

Table of values

List of values

cp's OEIS Frontend

A370764 a(n) = 4^n * [x^n] Product_{k>=1} ((1 + 2^(k+1)*x^k) * (1 + 2^(k-1)*x^k))^(1/2).

Table of values

List of values

A370764 a(n) = 4^n * [x^n] Product_{k>=1} ((1 + 2^(k+1)x^k) (1 + 2^(k-1)*x^k))^(1/2).