A375726 - cp's OEIS frontend

A375726 a(n) = a(n-1) + 3*a(n-2) + a(n-3) with a(0) = 1, a(1) = 3, a(2) = 6.

n	a(n)
0	1
1	3
2	6
3	16
4	37
5	91
6	218
7	528
8	1273
9	3075
10	7422
11	17920
12	43261
13	104443
14	252146
15	608736
16	1469617
17	3547971
18	8565558
19	20679088
20	49923733
21	120526555
22	290976842
23	702480240
24	1695937321
25	4094354883
26	9884647086
27	23863649056
28	57611945197
29	139087539451
30	335787024098

[1, 3, 6, 16, 37, 91, 218, 528, 1273, 3075, 7422, 17920, 43261, 104443, 252146, 608736, 1469617, 3547971, 8565558, 20679088, 49923733, 120526555, 290976842, 702480240, 1695937321, 4094354883, 9884647086, 23863649056, 57611945197, 139087539451, 335787024098]

cp's OEIS Frontend

A375726 a(n) = a(n-1) + 3*a(n-2) + a(n-3) with a(0) = 1, a(1) = 3, a(2) = 6.

Table of values

List of values