A082987 - cp's OEIS frontend

A082987 a(n) = Sum_{k=0..n} 3^k*F(k) where F(k) is the k-th Fibonacci number.

n	a(n)
0	0
1	3
2	12
3	66
4	309
5	1524
6	7356
7	35787
8	173568
9	842790
10	4090485
11	19856568
12	96384072
13	467861331
14	2271040644
15	11023873914
16	53510987541
17	259747827852
18	1260842371428
19	6120257564955
20	29708354037720
21	144207380197758

[0, 3, 12, 66, 309, 1524, 7356, 35787, 173568, 842790, 4090485, 19856568, 96384072, 467861331, 2271040644, 11023873914, 53510987541, 259747827852, 1260842371428, 6120257564955, 29708354037720, 144207380197758]

cp's OEIS Frontend

A082987 a(n) = Sum_{k=0..n} 3^k*F(k) where F(k) is the k-th Fibonacci number.

Table of values

List of values