A054485 - cp's OEIS frontend

A054485 Expansion of (1+3x)/(1-4x+x^2).

n	a(n)
0	1
1	7
2	27
3	101
4	377
5	1407
6	5251
7	19597
8	73137
9	272951
10	1018667
11	3801717
12	14188201
13	52951087
14	197616147
15	737513501
16	2752437857
17	10272237927
18	38336513851
19	143073817477
20	533958756057
21	1992761206751
22	7437086070947
23	27755583077037

[1, 7, 27, 101, 377, 1407, 5251, 19597, 73137, 272951, 1018667, 3801717, 14188201, 52951087, 197616147, 737513501, 2752437857, 10272237927, 38336513851, 143073817477, 533958756057, 1992761206751, 7437086070947, 27755583077037]

cp's OEIS Frontend

A054485 Expansion of (1+3x)/(1-4x+x^2).

Table of values

List of values

cp's OEIS Frontend

A054485 Expansion of (1+3*x)/(1-4*x+x^2).

Table of values

List of values

A054485 Expansion of (1+3x)/(1-4x+x^2).