A305459 - cp's OEIS frontend

A305459 a(0) = 1, a(1) = 3, a(n) = 3na(n-1) + a(n-2).

n	a(n)
0	1
1	3
2	19
3	174
4	2107
5	31779
6	574129
7	12088488
8	290697841
9	7860930195
10	236118603691
11	7799774851998
12	281028013275619
13	10967892292601139
14	460932504302523457
15	20752930585906156704
16	996601600627798045249
17	50847434562603606464403

[1, 3, 19, 174, 2107, 31779, 574129, 12088488, 290697841, 7860930195, 236118603691, 7799774851998, 281028013275619, 10967892292601139, 460932504302523457, 20752930585906156704, 996601600627798045249, 50847434562603606464403]

cp's OEIS Frontend

A305459 a(0) = 1, a(1) = 3, a(n) = 3na(n-1) + a(n-2).

Table of values

List of values

cp's OEIS Frontend

A305459 a(0) = 1, a(1) = 3, a(n) = 3*n*a(n-1) + a(n-2).

Table of values

List of values

A305459 a(0) = 1, a(1) = 3, a(n) = 3na(n-1) + a(n-2).