A203976 - cp's OEIS frontend

A203976 a(n) = 3*a(n-2) - a(n-4), a(0)=0, a(1)=1, a(2)=5, a(3)=4.

n	a(n)
0	0
1	1
2	5
3	4
4	15
5	11
6	40
7	29
8	105
9	76
10	275
11	199
12	720
13	521
14	1885
15	1364
16	4935
17	3571
18	12920
19	9349
20	33825
21	24476
22	88555
23	64079
24	231840
25	167761
26	606965
27	439204
28	1589055
29	1149851
30	4160200
31	3010349
32	10891545
33	7881196
34	28514435
35	20633239
36	74651760
37	54018521
38	195440845

[0, 1, 5, 4, 15, 11, 40, 29, 105, 76, 275, 199, 720, 521, 1885, 1364, 4935, 3571, 12920, 9349, 33825, 24476, 88555, 64079, 231840, 167761, 606965, 439204, 1589055, 1149851, 4160200, 3010349, 10891545, 7881196, 28514435, 20633239, 74651760, 54018521, 195440845]

cp's OEIS Frontend

A203976 a(n) = 3*a(n-2) - a(n-4), a(0)=0, a(1)=1, a(2)=5, a(3)=4.

Table of values

List of values