A217336 - cp's OEIS frontend

A217336 a(n) = 3^(-1+floor(n/2))A(n), where A(n) = 3A(n-1) + A(n-2) - A(n-3)/3 with A(0)=A(1)=3, A(2)=11.

n	a(n)
0	1
1	1
2	11
3	35
4	345
5	1129
6	11091
7	36315
8	356721
9	1168017
10	11473371
11	37567443
12	369023049
13	1208298105
14	11869049763
15	38863020555
16	381749439969
17	1249968331809
18	12278374244523
19	40203278289027
20	394914722339385
21	1293075627640713

[1, 1, 11, 35, 345, 1129, 11091, 36315, 356721, 1168017, 11473371, 37567443, 369023049, 1208298105, 11869049763, 38863020555, 381749439969, 1249968331809, 12278374244523, 40203278289027, 394914722339385, 1293075627640713]

cp's OEIS Frontend

A217336 a(n) = 3^(-1+floor(n/2))A(n), where A(n) = 3A(n-1) + A(n-2) - A(n-3)/3 with A(0)=A(1)=3, A(2)=11.

Table of values

List of values

cp's OEIS Frontend

A217336 a(n) = 3^(-1+floor(n/2))*A(n), where A(n) = 3*A(n-1) + A(n-2) - A(n-3)/3 with A(0)=A(1)=3, A(2)=11.

Table of values

List of values

A217336 a(n) = 3^(-1+floor(n/2))A(n), where A(n) = 3A(n-1) + A(n-2) - A(n-3)/3 with A(0)=A(1)=3, A(2)=11.