A370792 - cp's OEIS frontend

A370792 Expansion of Product_{k>=1} (1 + 3^(k+1)x^k) (1 + 3^(k-1)*x^k).

n	a(n)
0	1
1	10
2	39
3	390
4	1521
5	7830
6	49518
7	207360
8	951102
9	4264650
10	22185657
11	89579520
12	401428224
13	1676401110
14	7172977275
15	31972081050
16	130330236546
17	537393139200
18	2213787635712
19	8988968449530
20	36073295687070
21	150459195064320
22	590262148332288
23	2362876271009370
24	9314694641056095

[1, 10, 39, 390, 1521, 7830, 49518, 207360, 951102, 4264650, 22185657, 89579520, 401428224, 1676401110, 7172977275, 31972081050, 130330236546, 537393139200, 2213787635712, 8988968449530, 36073295687070, 150459195064320, 590262148332288, 2362876271009370, 9314694641056095]

cp's OEIS Frontend

A370792 Expansion of Product_{k>=1} (1 + 3^(k+1)x^k) (1 + 3^(k-1)*x^k).

Table of values

List of values

cp's OEIS Frontend

A370792 Expansion of Product_{k>=1} (1 + 3^(k+1)*x^k) * (1 + 3^(k-1)*x^k).

Table of values

List of values

A370792 Expansion of Product_{k>=1} (1 + 3^(k+1)x^k) (1 + 3^(k-1)*x^k).