A214778 - cp's OEIS frontend

A214778 a(n) = 3a(n-1) + 6a(n-2) + a(n-3), with a(0) = 3, a(1) = 3, and a(2) = 21.

n	a(n)
0	3
1	3
2	21
3	84
4	381
5	1668
6	7374
7	32511
8	143445
9	632775
10	2791506
11	12314613
12	54325650
13	239656134
14	1057236915
15	4663973199
16	20574997221
17	90766067772
18	400412159841
19	1766407883376
20	7792462676946
21	34376247490935
22	151649926417857
23	668999726876127
24	2951274986626458

[3, 3, 21, 84, 381, 1668, 7374, 32511, 143445, 632775, 2791506, 12314613, 54325650, 239656134, 1057236915, 4663973199, 20574997221, 90766067772, 400412159841, 1766407883376, 7792462676946, 34376247490935, 151649926417857, 668999726876127, 2951274986626458]

cp's OEIS Frontend

A214778 a(n) = 3a(n-1) + 6a(n-2) + a(n-3), with a(0) = 3, a(1) = 3, and a(2) = 21.

Table of values

List of values

cp's OEIS Frontend

A214778 a(n) = 3*a(n-1) + 6*a(n-2) + a(n-3), with a(0) = 3, a(1) = 3, and a(2) = 21.

Table of values

List of values

A214778 a(n) = 3a(n-1) + 6a(n-2) + a(n-3), with a(0) = 3, a(1) = 3, and a(2) = 21.