A276288 - cp's OEIS frontend

A276288 a(n) = a(n-1) + 3a(n-2) if n is even, otherwise a(n) = 3a(n-1) + a(n-2), a(0)=0, a(1)=1.

n	a(n)
0	0
1	1
2	1
3	4
4	7
5	25
6	46
7	163
8	301
9	1066
10	1969
11	6973
12	12880
13	45613
14	84253
15	298372
16	551131
17	1951765
18	3605158
19	12767239
20	23582713
21	83515378
22	154263517
23	546305929
24	1009096480
25	3573595369
26	6600884809
27	23376249796
28	43178904223
29	152912962465
30	282449675134
31	1000261987867
32	1847611013269
33	6543095027674

[0, 1, 1, 4, 7, 25, 46, 163, 301, 1066, 1969, 6973, 12880, 45613, 84253, 298372, 551131, 1951765, 3605158, 12767239, 23582713, 83515378, 154263517, 546305929, 1009096480, 3573595369, 6600884809, 23376249796, 43178904223, 152912962465, 282449675134, 1000261987867, 1847611013269, 6543095027674]

cp's OEIS Frontend

A276288 a(n) = a(n-1) + 3a(n-2) if n is even, otherwise a(n) = 3a(n-1) + a(n-2), a(0)=0, a(1)=1.

Table of values

List of values

cp's OEIS Frontend

A276288 a(n) = a(n-1) + 3*a(n-2) if n is even, otherwise a(n) = 3*a(n-1) + a(n-2), a(0)=0, a(1)=1.

Table of values

List of values

A276288 a(n) = a(n-1) + 3a(n-2) if n is even, otherwise a(n) = 3a(n-1) + a(n-2), a(0)=0, a(1)=1.