A316090 - cp's OEIS frontend

A316090 a(n) = [x^n] (Sum_{k=0..n} (kx)^k)/(Sum_{k=0..n} (-kx)^k).

n	a(n)
0	1
1	2
2	2
3	48
4	94
5	5694
6	12352
7	1539850
8	3323890
9	737028224
10	1556371198
11	548747031342
12	1138137849328
13	586694732526026
14	1202647898994626
15	852409708509446800
16	1734703213512100766
17	1616070775292699964094
18	3273912763003648926368
19	3875483980992048140938410

[1, 2, 2, 48, 94, 5694, 12352, 1539850, 3323890, 737028224, 1556371198, 548747031342, 1138137849328, 586694732526026, 1202647898994626, 852409708509446800, 1734703213512100766, 1616070775292699964094, 3273912763003648926368, 3875483980992048140938410]

cp's OEIS Frontend

A316090 a(n) = [x^n] (Sum_{k=0..n} (kx)^k)/(Sum_{k=0..n} (-kx)^k).

Table of values

List of values

cp's OEIS Frontend

A316090 a(n) = [x^n] (Sum_{k=0..n} (k*x)^k)/(Sum_{k=0..n} (-k*x)^k).

Table of values

List of values

A316090 a(n) = [x^n] (Sum_{k=0..n} (kx)^k)/(Sum_{k=0..n} (-kx)^k).