A139814 - cp's OEIS frontend

A139814 a(n)=a(n-1)+a(n-2)+a(n-3)+2a(n-4); a(0)=0,a(1)=1,a(2)=3,a(3)=7.

n	a(n)
0	0
1	1
2	3
3	7
4	11
5	23
6	47
7	95
8	187
9	375
10	751
11	1503
12	3003
13	6007
14	12015
15	24031
16	48059
17	96119
18	192239
19	384479
20	768955
21	1537911
22	3075823
23	6151647
24	12303291
25	24606583
26	49213167
27	98426335
28	196852667
29	393705335
30	787410671
31	1574821343
32	3149642683

[0, 1, 3, 7, 11, 23, 47, 95, 187, 375, 751, 1503, 3003, 6007, 12015, 24031, 48059, 96119, 192239, 384479, 768955, 1537911, 3075823, 6151647, 12303291, 24606583, 49213167, 98426335, 196852667, 393705335, 787410671, 1574821343, 3149642683]

cp's OEIS Frontend

A139814 a(n)=a(n-1)+a(n-2)+a(n-3)+2a(n-4); a(0)=0,a(1)=1,a(2)=3,a(3)=7.

Table of values

List of values