A322940 - cp's OEIS frontend

A322940 a(n) = [x^n] (4x^2 + x - 1)/(2x^2 + 3*x - 1).

n	a(n)
0	1
1	2
2	4
3	16
4	56
5	200
6	712
7	2536
8	9032
9	32168
10	114568
11	408040
12	1453256
13	5175848
14	18434056
15	65653864
16	233829704
17	832796840
18	2966049928
19	10563743464
20	37623330248
21	133997477672
22	477239093512
23	1699712235880
24	6053614894664
25	21560269155752
26	76788037256584

[1, 2, 4, 16, 56, 200, 712, 2536, 9032, 32168, 114568, 408040, 1453256, 5175848, 18434056, 65653864, 233829704, 832796840, 2966049928, 10563743464, 37623330248, 133997477672, 477239093512, 1699712235880, 6053614894664, 21560269155752, 76788037256584]

cp's OEIS Frontend

A322940 a(n) = [x^n] (4x^2 + x - 1)/(2x^2 + 3*x - 1).

Table of values

List of values

cp's OEIS Frontend

A322940 a(n) = [x^n] (4*x^2 + x - 1)/(2*x^2 + 3*x - 1).

Table of values

List of values

A322940 a(n) = [x^n] (4x^2 + x - 1)/(2x^2 + 3*x - 1).