A089928 - cp's OEIS frontend

A089928 a(n) = 2a(n-1) + 2a(n-3) + a(n-4), with a(0)=1, a(1)=2, a(3)=4, a(4)=10.

n	a(n)
0	1
1	2
2	4
3	10
4	25
5	60
6	144
7	348
8	841
9	2030
10	4900
11	11830
12	28561
13	68952
14	166464
15	401880
16	970225
17	2342330
18	5654884
19	13652098
20	32959081
21	79570260
22	192099600
23	463769460
24	1119638521
25	2703046502
26	6525731524
27	15754509550
28	38034750625
29	91824010800

[1, 2, 4, 10, 25, 60, 144, 348, 841, 2030, 4900, 11830, 28561, 68952, 166464, 401880, 970225, 2342330, 5654884, 13652098, 32959081, 79570260, 192099600, 463769460, 1119638521, 2703046502, 6525731524, 15754509550, 38034750625, 91824010800]

cp's OEIS Frontend

A089928 a(n) = 2a(n-1) + 2a(n-3) + a(n-4), with a(0)=1, a(1)=2, a(3)=4, a(4)=10.

Table of values

List of values

cp's OEIS Frontend

A089928 a(n) = 2*a(n-1) + 2*a(n-3) + a(n-4), with a(0)=1, a(1)=2, a(3)=4, a(4)=10.

Table of values

List of values

A089928 a(n) = 2a(n-1) + 2a(n-3) + a(n-4), with a(0)=1, a(1)=2, a(3)=4, a(4)=10.